CISA Advisories

View CSAF Summary The following versions of Rockwell Automation ControlLogix, CompactLogix, CompactLogix 5480, GuardLogix, Compact GuardLogix are affected: ControlLogix 5580 <34.015, <35.014, <36.013, <37.011 (CVE-2021-42260, CVE-2021-42260, CVE-2021-42260, CVE-2021-42260) GuardLogix 5580 <34.015, <35.014, <36.013, <37.011 (CVE-2021-42260, CVE-2021-42260, CVE-2021-42260, CVE-2021-42260) CompactLogix 5380 <34.015, <35.014, <36.013, <37.011 (CVE-2021-42260, CVE-2021-42260, CVE-2021-42260, CVE-2021-42260) Compact GuardLogix 5380 <34.015, <35.014, <36.013, <37.011 (CVE-2021-42260, CVE-2021-42260, CVE-2021-42260, CVE-2021-42260) CompactLogix 5480 <34.015, <35.014, <36.013, <37.011 (CVE-2021-42260, CVE-2021-42260, CVE-2021-42260, CVE-2021-42260) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation ControlLogix, CompactLogix, CompactLogix 5480, GuardLogix, Compact GuardLogix Loop with Unreachable Exit Condition ('Infinite Loop') Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2021-42260 A potential denial of service vulnerability exists in the affected products and can be triggered via corrupt crafted data. This could result in a major nonrecoverable fault (MNRF). A program download is required to recover safety controllers. For non-safety controllers, a stage 2 reset is required to recover. View CVE Details Affected Products Rockwell Automation ControlLogix, CompactLogix, CompactLogix 5480, GuardLogix, Compact GuardLogix Vendor: Rockwell Automation Product Version: Rockwell Automation ControlLogix 5580 <34.015, Rockwell Automation ControlLogix 5580 <35.014, Rockwell Automation ControlLogix 5580 <36.013, Rockwell Automation ControlLogix 5580 <37.011, Rockwell Automation GuardLogix 5580 <34.015, Rockwell Automation GuardLogix 5580 <35.014, Rockwell Automation GuardLogix 5580 <36.013, Rockwell Automation GuardLogix 5580 <37.011, Rockwell Automation CompactLogix 5380 <34.015, Rockwell Automation CompactLogix 5380 <35.014, Rockwell Automation CompactLogix 5380 <36.013, Rockwell Automation CompactLogix 5380 <37.011, Rockwell Automation Compact GuardLogix 5380 <34.015, Rockwell Automation Compact GuardLogix 5380 <35.014, Rockwell Automation Compact GuardLogix 5380 <36.013, Rockwell Automation Compact GuardLogix 5380 <37.011, Rockwell Automation CompactLogix 5480 <34.015, Rockwell Automation CompactLogix 5480 <35.014, Rockwell Automation CompactLogix 5480 <36.013, Rockwell Automation CompactLogix 5480 <37.011 Product Status: known_affected Remediations Vendor fix Rockwell Automation recommends users update to firmware version 34.015 and later. Vendor fix Rockwell Automation recommends users update to firmware version 35.014 and later. Vendor fix Rockwell Automation recommends users update to firmware version 36.013 and later. Vendor fix Rockwell Automation recommends users update to firmware version 37.011 and later. Mitigation Customers using the affected software who are not able to upgrade to one of the corrected versions should use Rockwell Automation's security best practices. Relevant CWE: CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial republication of Rockwell Automation advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to escalate and execute processes with administrator privileges. The following versions of Rockwell Automation Redundancy Module Configuration Tool are affected: Redundancy Module Configuration Tool 10.00.00 (CVE-2026-9633) Redundancy Module Configuration Tool >=9.00.00|<=10.00.00 (CVE-2026-9634) CVSS Vendor Equipment Vulnerabilities v3 7.3 Rockwell Automation Rockwell Automation Redundancy Module Configuration Tool Incorrect Default Permissions Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9633 A security issue exists within the Redundancy Module Configuration Tool. The RM3ConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: 10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-276 Incorrect Default Permissions Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.3 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H 4.0 7 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-9634 A security issue exists within the Redundancy Module Configuration Tool. The RMConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non-administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: >=9.00.00|<=10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-276 Incorrect Default Permissions Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.3 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H 4.0 7 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely. Revision History Initial Release Date: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial Republication of Rockwell Automation Security Advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition on the affected product. The following versions of Rockwell Automation RSLinx Classic are affected: RSLinx Classic <=4.50 (CVE-2026-9621, CVE-2026-9622, CVE-2026-9624, CVE-2026-9625) CVSS Vendor Equipment Vulnerabilities v3 8.6 Rockwell Automation Rockwell Automation RSLinx Classic Integer Overflow or Wraparound, Integer Underflow (Wrap or Wraparound), Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9621 A denial-of-service security issue exists within RSLinx Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-190 Integer Overflow or Wraparound Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVE-2026-9622 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-191 Integer Underflow (Wrap or Wraparound) Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVE-2026-9624 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet can cause the RSLinx Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-191 Integer Underflow (Wrap or Wraparound) Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-9625 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet with an oversized embedded message request can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial Republication of Rockwell Automation Advisory Legal Notice and Terms of Use

View CSAF Summary The following versions of Rockwell Automation Logix Platform are affected: ControlLogix 5580 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) CompactLogix 5380 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) GuardLogix 5580 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) Compact GuardLogix 5380 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation Logix Platform Improper Restriction of Operations within the Bounds of a Memory Buffer Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9637 A denial-of-service vulnerability exists in the affected Logix platforms due to improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover. View CVE Details Affected Products Rockwell Automation Logix Platform Vendor: Rockwell Automation Product Version: Rockwell Automation ControlLogix 5580 <=V33, Rockwell Automation ControlLogix 5580 V34.011-V34.014, Rockwell Automation ControlLogix 5580 V35.011-V35.013, Rockwell Automation ControlLogix 5580 V36.011-V36.012, Rockwell Automation CompactLogix 5380 <=V33, Rockwell Automation CompactLogix 5380 V34.011-V34.014, Rockwell Automation CompactLogix 5380 V35.011-V35.013, Rockwell Automation CompactLogix 5380 V36.011-V36.012, Rockwell Automation GuardLogix 5580 <=V33, Rockwell Automation GuardLogix 5580 V34.011-V34.014, Rockwell Automation GuardLogix 5580 V35.011-V35.013, Rockwell Automation GuardLogix 5580 V36.011-V36.012, Rockwell Automation Compact GuardLogix 5380 <=V33, Rockwell Automation Compact GuardLogix 5380 V34.011-V34.014, Rockwell Automation Compact GuardLogix 5380 V35.011-V35.013, Rockwell Automation Compact GuardLogix 5380 V36.011-V36.012 Product Status: known_affected Remediations Vendor fix Rockwell Automation recommends users update to firmware version V37.011. Vendor fix Rockwell Automation recommends users update to firmware version 34.015. Vendor fix Rockwell Automation recommends users update to firmware version 35.014. Vendor fix Rockwell Automation recommends users update to firmware version 36.013. Mitigation Customers using the affected software who are not able to upgrade to one of the corrected versions should use Rockwell Automation's security best practices. Relevant CWE: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial republication of Rockwell Automation advisory Legal Notice and Terms of Use

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-81578 PaperCut NG/MF Missing Authentication for Critical Function Vulnerability CVE-2026-82078 PaperCut NG/MF Unsafe Reflection Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

View CSAF Summary Successful exploitation of this vulnerability could allow a remote attacker to cause an out-of-bounds read, resulting in a denial-of-service condition in the affected products. The following versions of Mitsubishi Electric CNC Series (Update A) are affected: Mitsubishi Electric M800VW (BND-2051W000) <=BB (CVE-2025-2399) Mitsubishi Electric M800VS (BND-2052W000) <=BB (CVE-2025-2399) Mitsubishi Electric M80V (BND-2053W000) <=BB (CVE-2025-2399) Mitsubishi Electric M80VW (BND-2054W000) <=BB (CVE-2025-2399) Mitsubishi Electric M800W (BND-2005W000) <=FM (CVE-2025-2399) Mitsubishi Electric M800S (BND-2006W000) <=FM (CVE-2025-2399) Mitsubishi Electric M80 (BND-2007W000) <=FM (CVE-2025-2399) Mitsubishi Electric M80W (BND-2008W000) <=FM (CVE-2025-2399) Mitsubishi Electric E80 (BND-2009W000) <=FM (CVE-2025-2399) Mitsubishi Electric C80 (BND-2036W000) vers:all/* (CVE-2025-2399) Mitsubishi Electric M750VW (BND-1015W002) <=LJ (CVE-2025-2399) Mitsubishi Electric M730VW (BND-1015W000) <=LJ (CVE-2025-2399) Mitsubishi Electric M720VW (BND-1015W000) <=LJ (CVE-2025-2399) Mitsubishi Electric M750VS (BND-1012W002) <=LJ (CVE-2025-2399) Mitsubishi Electric M730VS (BND-1012W000) <=LJ (CVE-2025-2399) Mitsubishi Electric M720VS (BND-1012W000) <=LJ (CVE-2025-2399) Mitsubishi Electric M70V (BND-1018W000) <=LJ (CVE-2025-2399) Mitsubishi Electric E70 (BND-1022W000) <=LJ (CVE-2025-2399) CVSS Vendor Equipment Vulnerabilities v3 5.9 Mitsubishi Electric Mitsubishi Electric CNC Series (Update A) Improper Validation of Specified Index, Position, or Offset in Input Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Japan Vulnerabilities Expand All + CVE-2025-2399 Improper Validation of Specified Index, Position, or Offset in Input (CWE-1285) vulnerability in the affected products allows a remote attacker to cause an out-of-bounds read, resulting in a denial-of-service condition in the affected products by sending specially crafted packets to TCP port 683. View CVE Details Affected Products Mitsubishi Electric CNC Series (Update A) Vendor: Mitsubishi Electric Product Version: Mitsubishi Electric M800VW (BND-2051W000): <=BB, Mitsubishi Electric M800VS (BND-2052W000): <=BB, Mitsubishi Electric M80V (BND-2053W000): <=BB, Mitsubishi Electric M80VW (BND-2054W000): <=BB, Mitsubishi Electric M800W (BND-2005W000): <=FM, Mitsubishi Electric M800S (BND-2006W000): <=FM, Mitsubishi Electric M80 (BND-2007W000): <=FM, Mitsubishi Electric M80W (BND-2008W000): <=FM, Mitsubishi Electric E80 (BND-2009W000): <=FM, Mitsubishi Electric C80 (BND-2036W000): vers:all/*, Mitsubishi Electric M750VW (BND-1015W002): <=LJ, Mitsubishi Electric M730VW (BND-1015W000): <=LJ, Mitsubishi Electric M720VW (BND-1015W000): <=LJ, Mitsubishi Electric M750VS (BND-1012W002): <=LJ, Mitsubishi Electric M730VS (BND-1012W000): <=LJ, Mitsubishi Electric M720VS (BND-1012W000): <=LJ, Mitsubishi Electric M70V (BND-1018W000): <=LJ, Mitsubishi Electric E70 (BND-1022W000): <=LJ Product Status: known_affected Remediations Vendor fix Please apply the fixed version (BC or later) for Mitsubishi Electric M800VW (BND-2051W000), M800VS (BND-2052W000), M80V (BND-2053W000), and M80VW (BND-2054W000). For instructions on how to apply it, please consult your Mitsubishi Electric representative. Vendor fix Please apply the fixed version (FN or later) for Mitsubishi Electric M800W (BND-2005W000), M800S (BND-2006W000), M80 (BND-2007W000), M80W (BND-2008W000), and E80 (BND-2009W000). For instructions on how to apply it, please consult your Mitsubishi Electric representative. Vendor fix Please apply the fixed version (LK or later) for Mitsubishi Electric M750VW (BND-1015W002), M730VW (BND-1015W000), M720VW (BND-1015W000), M750VS (BND-1012W002), M730VS (BND-1012W000), M720VS (BND-1012W000), M70V (BND-1018W000), and E70 (BND-1022W000). For instructions on how to apply it, please consult your Mitsubishi Electric representative. Mitigation For customers of products that do not have a fixed version or who cannot immediately update the product, Mitsubishi Electric recommends using a firewall or virtual private network (VPN) to prevent unauthorized access, when internet access is required, to minimize the risk of exploiting this vulnerability. Mitigation For customers of products that do not have a fixed version or who cannot immediately update the product, Mitsubishi Electric recommends using the product within a LAN and blocking access from untrusted networks and hosts through a firewall, to minimize the risk of exploiting this vulnerability. Mitigation For customers of products that do not have a fixed version or who cannot immediately update the product, Mitsubishi Electric recommends using IP filters to prevent unauthorized access, when internet access is required, to minimize the risk of exploiting this vulnerability. IP filter function is available for M800V/M80V Series and M800/M80/E80 Series. For details about the IP filter function, refer to the following manual for each product which can be downloaded from the link "https://www.mitsubishielectric.com/fa/download/index.html ": M800V/M80V Series Instruction Manual "16. Appendix 3 IP Address Filter Setting Function", M800/M80/E80 Series Instruction Manual "15. Appendix 2 IP Address Filter Setting Function". https://www.mitsubishielectric.com/fa/download/index.html Mitigation For customers of products that do not have a fixed version or who cannot immediately update the product, Mitsubishi Electric recommends restricting physical access to the affected product and to all computers and network devices to which the products are connected, to minimize the risk of exploiting this vulnerability. Mitigation For customers of products that do not have a fixed version or who cannot immediately update the product, Mitsubishi Electric recommends installing anti-virus software on PCs that can access the affected product, to minimize the risk of exploiting this vulnerability. Relevant CWE: CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.9 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Acknowledgments Mitsubishi Electric reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Mitsubishi Electric 2025-022 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Mitsubishi Electric directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-03-10 Date Revision Summary 2026-03-10 1 Initial Publication 2026-03-19 2 CISA Republication - Initial CISA Republication of Mitsubishi Electric V20250121-001#02 advisory 2026-08-27 3 Removed Software Tools NC Trainer2 and Software Tools NC Trainer2 plus, from affected products. And added M700V/M70V/E70 Series as fixed products. 2026-08-27 4 CISA Republication update based on Mitsubishi Electric 2025-022 advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to take control over the device. The following versions of Xiiaozet LK100W are affected: LK100W <2.1.240 (CVE-2026-78037, CVE-2026-78239, CVE-2026-76943) CVSS Vendor Equipment Vulnerabilities v3 9.8 Xiiaozet Xiiaozet LK100W Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Missing Authentication for Critical Function, Authentication Bypass Using an Alternate Path or Channel Background Critical Infrastructure Sectors: Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-78037 Xiiaozet LK100W is vulnerable to OS command injection through its web-based management interface. An authenticated attacker may be able to execute arbitrary operating system commands with elevated privileges, potentially resulting in unauthorized access to sensitive information or complete device compromise. View CVE Details Affected Products Xiiaozet LK100W Vendor: Xiiaozet Product Version: Xiiaozet LK100W: <2.1.240 Product Status: known_affected Remediations Mitigation Xiiaozet recommends users update to v2.1.240. Relevant CWE: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-78239 Xiiaozet LK100W exposes a critical management function that can be invoked without authentication, allowing a remote attacker to enable administrative services that should be restricted. Successful exploitation may permit unauthorized access to the device. View CVE Details Affected Products Xiiaozet LK100W Vendor: Xiiaozet Product Version: Xiiaozet LK100W: <2.1.240 Product Status: known_affected Remediations Mitigation Xiiaozet recommends users update to v2.1.240. Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-76943 Xiiaozet LK100Wt contains an authentication weakness within an administrative service that may allow an attacker to bypass intended access controls and obtain command execution capabilities. Successful exploitation could allow unauthorized interaction with privileged functionality and may lead to complete device compromise. View CVE Details Affected Products Xiiaozet LK100W Vendor: Xiiaozet Product Version: Xiiaozet LK100W: <2.1.240 Product Status: known_affected Remediations Mitigation Xiiaozet recommends users update to v2.1.240. Relevant CWE: CWE-288 Authentication Bypass Using an Alternate Path or Channel Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments Byron Guernsey of Okachobi, LLC reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-08-27 Date Revision Summary 2026-08-27 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to fully compromise the device. The following versions of Ebyte NA111-M are affected: NA111-M Firmware 9013-2-17 (CVE-2026-73125, CVE-2026-76179, CVE-2026-75814, CVE-2026-76940, CVE-2026-77966, CVE-2026-73809, CVE-2026-71187, CVE-2026-75548, CVE-2026-69658, CVE-2026-76133, CVE-2026-73819, CVE-2026-77975, CVE-2026-77977) CVSS Vendor Equipment Vulnerabilities v3 9.8 Ebyte Ebyte NA111-M Missing Authentication for Critical Function, Use of GET Request Method With Sensitive Query Strings, Cross-Site Request Forgery (CSRF), Improper Restriction of Excessive Authentication Attempts, Missing Authorization, Cleartext Transmission of Sensitive Information, Use of Client-Side Authentication, Improper Restriction of Rendered UI Layers or Frames, Use of a Broken or Risky Cryptographic Algorithm, Weak Authentication, Cleartext Storage of Sensitive Information Background Critical Infrastructure Sectors: Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-73125 Ebyte device web management interface does not consistently enforce authentication before granting access to administrative functionality. An unauthenticated remote attacker could access sensitive configuration information, modify device settings, or disrupt availability. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-76179 An improper protection of authentication tokens vulnerability exists in certain Ebyte gateway products. Authentication tokens used by the web management interface are insufficiently protected during client-side session handling, which may allow an attacker with access to exposed session information to obtain and reuse a valid token. Successful exploitation could allow an attacker to impersonate an authenticated user and gain unauthorized access to device management functionality. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-598 Use of GET Request Method With Sensitive Query Strings Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-75814 Ebyte device does not adequately verify the origin or authenticity of requests submitted to the web management interface. An unauthenticated remote attacker could persuade an authenticated administrator to visit a crafted page, causing unauthorized configuration changes or a disruption of device availability. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-352 Cross-Site Request Forgery (CSRF) Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 4.0 8.6 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-76940 The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authentication. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-77966 The affected product does not provide separation between limited and administrative management functions. A low privileged authenticated attacker could access security sensitive configuration functions and modify settings that affect the confidentiality, integrity, or availability of the device. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-862 Missing Authorization Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-73809 A cleartext transmission of sensitive information vulnerability exists in certain Ebyte gateway products. The web management interface does not adequately protect sensitive communications using transport-layer encryption. An attacker with access to network traffic could intercept authentication or session-related information transmitted between a user and the affected device. Successful exploitation could result in disclosure of sensitive information and unauthorized access to device management functionality. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-319 Cleartext Transmission of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-71187 Ebyte device relies on client side authentication logic that can be reproduced by unauthenticated users. An attacker may generate valid authentication requests and bypass authentication to obtain administrative access to the device. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-603 Use of Client-Side Authentication Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-75548 The affected Ebyte device web management interface does not restrict the interface from being rendered within an external frame. An unauthenticated remote attacker could use a crafted webpage to mislead an authenticated administrator into initiating unintended configuration changes or disruptive actions. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-1021 Improper Restriction of Rendered UI Layers or Frames Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.4 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N 4.0 5.1 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVE-2026-69658 MQTT credentials and control traffic are transmitted in cleartext, exposing sensitive information to network-level attackers. This may enable unauthorized device impersonation and disruption of messaging functions. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-319 Cleartext Transmission of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-76133 The affected product uses a deprecated hashing algorithm in an authentication-related operation. Under conditions where an attacker can manipulate or predict the authentication exchange, the weak construction may reduce the assurance provided by the authentication mechanism and facilitate unauthorized access. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-327 Use of a Broken or Risky Cryptographic Algorithm Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-73819 The affected product's vendor configuration utility permits access to administrative functions without verifying the operator's identity under certain credential conditions. An unauthenticated attacker on the adjacent network could modify critical settings or change access credentials, potentially preventing legitimate administrators from managing the device. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-1390 Weak Authentication Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-77975 The affected product exports administrative credentials and other sensitive configuration information without adequate protection. An unauthenticated attacker on the adjacent network who can obtain an exported configuration file could recover valid credentials and use them to access the device or similarly configured systems. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-312 Cleartext Storage of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 7.1 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-77977 The affected product's vendor configuration utility does not require authentication before allowing certain disruptive administrative actions when default credentials remain configured. An unauthenticated attacker on the adjacent network could reboot the device or restore factory settings, resulting in a loss of configuration and service availability. View CVE Details Affected Products Ebyte NA111-M Vendor: Ebyte Product Version: Ebyte NA111-M Firmware: 9013-2-17 Product Status: known_affected Remediations Mitigation Ebyte acknowledged receipt of the reported vulnerabilities and indicated that a patch was under development. However, the vendor has not responded to subsequent requests for coordination, and CISA has not been informed of the status or availability of the patch. Users are encouraged to reach out to Ebyte for more information. Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H 4.0 7.2 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments Jithin Nambiar J reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-08-27 Date Revision Summary 2026-08-27 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of this vulnerability could reduce the computational cost required for an attacker to perform offline brute-force attacks against stored password hashes. The following versions of Rockwell Automation OTTO Fleet Manager are affected: OTTO Fleet Manager <=V2.36.2 (CVE-2026-75112) CVSS Vendor Equipment Vulnerabilities v3 6.8 Rockwell Automation Rockwell Automation OTTO Fleet Manager Use of Password Hash With Insufficient Computational Effort Background Critical Infrastructure Sectors: Critical Manufacturing, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-75112 A security issue exists within OTTO Fleet Manager. The vulnerability stems from the use of an insufficient work factor in the bcrypt password hashing implementation, which could reduce the computational cost required for an attacker to perform offline brute-force attacks against stored password hashes. If an attacker gains access to an unencrypted system backup, the weakly hashed credentials could be more easily compromised. View CVE Details Affected Products Rockwell Automation OTTO Fleet Manager Vendor: Rockwell Automation Product Version: Rockwell Automation OTTO Fleet Manager: <=V2.36.2 Product Status: known_affected Remediations Mitigation Rockwell Automation has addressed this vulnerability in software version 2.36.3. https://file-share.ottomotors.com/login Mitigation Users of the affected software who are not able to upgrade to the corrected version or apply the mitigations should use Rockwell Automation's security best practices. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Vendor fix See Rockwell Automation security advisory SD1791 for more information about this issue and instructions to enable encrypted system backup in OTTO Fleet Manager. https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1791.html Mitigation If you have any questions regarding the security issue(s) above and how to mitigate them, contact Rockwell Automation support. https://ottomotors.com/otto-care/ Mitigation If you have any questions regarding this disclosure, please email Rockwell Automation PSIRT: rasecure@ra.rockwell.com mailto:rasecure@ra.rockwell.com Relevant CWE: CWE-916 Use of Password Hash With Insufficient Computational Effort Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.8 MEDIUM CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N 4.0 6.9 MEDIUM CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. Revision History Initial Release Date: 2026-08-27 Date Revision Summary 2026-08-27 1 Initial Republication of Rockwell Automation SD1791. Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow attackers to execute arbitrary commands or code remotely on affected systems. The following versions of All-Line Equipment Company Fuel-Boss are affected: Fuel-Boss V1 Standard >=|<=PHP_7.1.5_7.1.5 (CVE-2018-19518, CVE-2019-11043) Fuel-Boss V1 Portal >=|<=PHP_7.1.5_7.1.5 (CVE-2018-19518, CVE-2019-11043) Fuel-Boss V1 Master/Slave >=|<=PHP_7.1.5_7.1.5 (CVE-2018-19518, CVE-2019-11043) Fuel-Boss V1 Backflush Systems >=|<=PHP_7.1.5_7.1.5 (CVE-2018-19518, CVE-2019-11043) CVSS Vendor Equipment Vulnerabilities v3 8.7 All-Line Equipment Company All-Line Equipment Company Fuel-Boss Improper Neutralization of Argument Delimiters in a Command ('Argument Injection'), Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Background Critical Infrastructure Sectors: Critical Manufacturing, Defense Industrial Base, Emergency Services, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2018-19518 Fuel-Boss is vulnerable to the University of Washington IMAP Toolkit 2007f on UNIX, used in imap_open() in PHP and other products, launching an rsh command via the imap_rimap and tcp_aopen functions without preventing argument injection, which can allow remote attackers to execute arbitrary OS commands when an untrusted IMAP server name is supplied and rsh has been replaced by a program with different argument semantics such as ssh. This enables attacks through IMAP server names containing a "-oProxyCommand" argument, as well as a stack-based buffer overflow that may allow an attacker to remotely execute arbitrary code. View CVE Details Affected Products All-Line Equipment Company Fuel-Boss Vendor: All-Line Equipment Company Product Version: All-Line Equipment Company Fuel-Boss V1 Standard: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Portal: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Master/Slave: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Backflush Systems: >=|<=PHP_7.1.5_7.1.5 Product Status: known_affected Remediations Vendor fix Fixes are available for the Fuel-Boss V1 Standard and Fuel-Boss V1 Portal. Please contact All-Line Equipment Company (866-356-3336) for instructions on how to receive these fixes. Vendor fix Fixes are not yet available for the Fuel-Boss V1 Master/Slave. Vendor fix No fix is planned for Fuel-Boss V1 Backflush Systems. Mitigation All-Line Equipment Company recommends either taking products that are not fixed off the Internet or restricting the IP addresses that can access them at the router level. Relevant CWE: CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 7.7 HIGH CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2019-11043 Fuel-Boss running versions up to and including PHP 7.1.5 is vulnerable because certain FPM configurations allow the FPM module to write past allocated buffers into space reserved for FCGI protocol data, thereby creating a possible remote code execution condition. View CVE Details Affected Products All-Line Equipment Company Fuel-Boss Vendor: All-Line Equipment Company Product Version: All-Line Equipment Company Fuel-Boss V1 Standard: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Portal: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Master/Slave: >=|<=PHP_7.1.5_7.1.5, All-Line Equipment Company Fuel-Boss V1 Backflush Systems: >=|<=PHP_7.1.5_7.1.5 Product Status: known_affected Remediations Vendor fix Fixes are available for the Fuel-Boss V1 Standard and Fuel-Boss V1 Portal. Please contact All-Line Equipment Company (866-356-3336) for instructions on how to receive these fixes. Vendor fix Fixes are not yet available for the Fuel-Boss V1 Master/Slave. Vendor fix No fix is planned for Fuel-Boss V1 Backflush Systems. Mitigation All-Line Equipment Company recommends either taking products that are not fixed off the Internet or restricting the IP addresses that can access them at the router level. Relevant CWE: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.7 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N 4.0 9.4 CRITICAL CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N Acknowledgments These vulnerabilities were anonymously reported to CISA. Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. These vulnerabilities have a high attack complexity. Revision History Initial Release Date: 2026-08-27 Date Revision Summary 2026-08-27 1 Initial Publication Legal Notice and Terms of Use