Critical

Bendix EC80 Brake ECU

All CISA Advisories

Overview

Bendix has identified critical vulnerabilities in its EC80 Brake ECU, which could allow attackers to disrupt essential vehicle functions like ABS, steering assist, and traction control. The affected versions include multiple models such as EC80ESP+ and EC80ESP PLC across various configurations. These vulnerabilities stem from issues like stack-based buffer overflows, out-of-bounds writes, and the use of hard-coded credentials. Users of the affected products are urged to update their firmware to the latest versions to mitigate these risks. This situation is particularly concerning as it affects vehicle safety systems, making prompt action crucial for those using the impacted equipment.

Key Takeaways

  • Affected Systems: Affected products include Bendix EC80 Brake ECU versions: EC80ESP+ J1708 Z228999, EC80ESP+ 6S/6M Z228999, EC80ESP+ PLC Z228999, EC80ESP+ 2nd CAN Z228999, EC80ESP+ Integrated TPMS Z228999, EC80ESP 6S/6M Z266494, EC80ESP PLC Z266494, EC80ESP 2nd CAN Z266494, EC80ESP CAN Gateway Z266494, EC80ESP 4S/4M Z286098, EC80ESP PLC Z286098.
  • Action Required: Users should update their firmware to the following versions: EC80ESP+ J1708 Z228999, EC80ESP+ 6S/6M Z228999, EC80ESP+ PLC Z228999, EC80ESP+ 2nd CAN Z228999, EC80ESP+ Integrated TPMS Z228999 to version Z300822; EC80ESP 6S/6M Z266494, EC80ESP PLC Z266494, EC80ESP 2nd CAN Z266494, EC80ESP CAN Gateway Z266494 to version Z302578; EC80ESP 4S/4M Z286098, EC80ESP PLC Z286098 to version Z302579.
  • Timeline: Newly disclosed

Original Article Summary

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to cause the loss of ABS functions, steering assist, speedometer, shifting capabilities, or disable automatic traction control. The following versions of Bendix EC80 Brake ECU are affected: EC80ESP+ J1708 Z228999 EC80ESP+ 6S/6M Z228999 EC80ESP+ PLC Z228999 EC80ESP+ 2nd CAN Z228999 EC80ESP+ Integrated TPMS Z228999 EC80ESP 6S/6M Z266494 EC80ESP PLC Z266494 EC80ESP 2nd CAN Z266494 EC80ESP CAN Gateway Z266494 EC80ESP 4S/4M Z286098 EC80ESP PLC Z286098 CVSS Vendor Equipment Vulnerabilities v3 7.5 Bendix Bendix EC80 Brake ECU Stack-based Buffer Overflow, Out-of-bounds Write, Use of Hard-coded Credentials Background Critical Infrastructure Sectors: Transportation Systems Countries/Areas Deployed: United States, Canada Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-67560 The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to crash the ECU. A crafted payload can then be used to remotely execute arbitrary code or inject arbitrary CAN bus traffic. This could cause the loss of the ABS function, steering assist, speedometer, and shifting. View CVE Details Affected Products Bendix EC80 Brake ECU Vendor: Bendix Product Version: Bendix EC80ESP+ J1708: Z228999, Bendix EC80ESP+ 6S/6M: Z228999, Bendix EC80ESP+ PLC: Z228999, Bendix EC80ESP+ 2nd CAN: Z228999, Bendix EC80ESP+ Integrated TPMS: Z228999, Bendix EC80ESP 6S/6M: Z266494, Bendix EC80ESP PLC: Z266494, Bendix EC80ESP 2nd CAN: Z266494, Bendix EC80ESP CAN Gateway: Z266494, Bendix EC80ESP 4S/4M: Z286098, Bendix EC80ESP PLC: Z286098 Product Status: known_affected Remediations Mitigation Bendix recommends users update their firmware to the most recent firmware version releases. Users that need more help should contact Bendix directly at info@Bendix.com. mailto:info@Bendix.com Vendor fix EC80ESP+ J1708: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 6S/6M: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ PLC: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 2nd CAN: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ Integrated TPMS: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP 6S/6M: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP PLC: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 2nd CAN: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP CAN Gateway: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 4S/4M: Z286098 users should update their firmware to version Z302579. Vendor fix EC80ESP PLC: Z286098 users should update their firmware to version Z302579. Relevant CWE: CWE-121 Stack-based Buffer Overflow Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 7.7 HIGH CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-68967 The affected product is vulnerable to an out-of-bounds write, which could allow an attacker to deliver a payload that could establish an arbitrary write primitive, which could crash the ECU. View CVE Details Affected Products Bendix EC80 Brake ECU Vendor: Bendix Product Version: Bendix EC80ESP+ J1708: Z228999, Bendix EC80ESP+ 6S/6M: Z228999, Bendix EC80ESP+ PLC: Z228999, Bendix EC80ESP+ 2nd CAN: Z228999, Bendix EC80ESP+ Integrated TPMS: Z228999, Bendix EC80ESP 6S/6M: Z266494, Bendix EC80ESP PLC: Z266494, Bendix EC80ESP 2nd CAN: Z266494, Bendix EC80ESP CAN Gateway: Z266494, Bendix EC80ESP 4S/4M: Z286098, Bendix EC80ESP PLC: Z286098 Product Status: known_affected Remediations Mitigation Bendix recommends users update their firmware to the most recent firmware version releases. Users that need more help should contact Bendix directly at info@Bendix.com. mailto:info@Bendix.com Vendor fix EC80ESP+ J1708: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 6S/6M: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ PLC: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 2nd CAN: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ Integrated TPMS: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP 6S/6M: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP PLC: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 2nd CAN: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP CAN Gateway: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 4S/4M: Z286098 users should update their firmware to version Z302579. Vendor fix EC80ESP PLC: Z286098 users should update their firmware to version Z302579. Relevant CWE: CWE-787 Out-of-bounds Write 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:N/I:H/A:N 4.0 7.1 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVE-2026-71396 The affected product uses hard-coded credentials, which could allow an attacker to disable automatic traction control. View CVE Details Affected Products Bendix EC80 Brake ECU Vendor: Bendix Product Version: Bendix EC80ESP+ J1708: Z228999, Bendix EC80ESP+ 6S/6M: Z228999, Bendix EC80ESP+ PLC: Z228999, Bendix EC80ESP+ 2nd CAN: Z228999, Bendix EC80ESP+ Integrated TPMS: Z228999, Bendix EC80ESP 6S/6M: Z266494, Bendix EC80ESP PLC: Z266494, Bendix EC80ESP 2nd CAN: Z266494, Bendix EC80ESP CAN Gateway: Z266494, Bendix EC80ESP 4S/4M: Z286098, Bendix EC80ESP PLC: Z286098 Product Status: known_affected Remediations Mitigation Bendix recommends users update their firmware to the most recent firmware version releases. Users that need more help should contact Bendix directly at info@Bendix.com. mailto:info@Bendix.com Vendor fix EC80ESP+ J1708: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 6S/6M: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ PLC: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ 2nd CAN: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP+ Integrated TPMS: Z228999 users should update their firmware to version Z300822. Vendor fix EC80ESP 6S/6M: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP PLC: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 2nd CAN: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP CAN Gateway: Z266494 users should update their firmware to version Z302578. Vendor fix EC80ESP 4S/4M: Z286098 users should update their firmware to version Z302579. Vendor fix EC80ESP PLC: Z286098 users should update their firmware to version Z302579. Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.4 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L 4.0 5.3 MEDIUM CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N Acknowledgments Ben Gardiner of NMFTA 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 this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-08-25 Date Revision Summary 2026-08-25 1 Initial Publication Legal Notice and Terms of Use

Impact

Affected products include Bendix EC80 Brake ECU versions: EC80ESP+ J1708 Z228999, EC80ESP+ 6S/6M Z228999, EC80ESP+ PLC Z228999, EC80ESP+ 2nd CAN Z228999, EC80ESP+ Integrated TPMS Z228999, EC80ESP 6S/6M Z266494, EC80ESP PLC Z266494, EC80ESP 2nd CAN Z266494, EC80ESP CAN Gateway Z266494, EC80ESP 4S/4M Z286098, EC80ESP PLC Z286098.

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Newly disclosed

Remediation

Users should update their firmware to the following versions: EC80ESP+ J1708 Z228999, EC80ESP+ 6S/6M Z228999, EC80ESP+ PLC Z228999, EC80ESP+ 2nd CAN Z228999, EC80ESP+ Integrated TPMS Z228999 to version Z300822; EC80ESP 6S/6M Z266494, EC80ESP PLC Z266494, EC80ESP 2nd CAN Z266494, EC80ESP CAN Gateway Z266494 to version Z302578; EC80ESP 4S/4M Z286098, EC80ESP PLC Z286098 to version Z302579. Users needing assistance can contact Bendix at info@Bendix.com.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, CVE, Vulnerability, and 2 more.

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