Bendix EC80 Brake ECU: 3 CVEs, High 7.5
Summary
CISA reports 3 vulnerabilities in Bendix EC80ESP+ J1708, EC80ESP+ 6S/6M, EC80ESP+ PLC, EC80ESP+ 2nd CAN and 6 more. Weakness types: Stack-based Buffer Overflow, Out-of-bounds Write, Use of Hard-coded Credentials. 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. Highest CVSS v3 score: 7.5 (High), exploitable from an adjacent network.
At a glance
- Vendor
- Bendix
- Products
- EC80ESP+ J1708, EC80ESP+ 6S/6M, EC80ESP+ PLC, EC80ESP+ 2nd CAN, EC80ESP+ Integrated TPMS, EC80ESP 6S/6M, EC80ESP PLC, EC80ESP 2nd CAN
- CVEs
- CVE-2026-67560, CVE-2026-68967, CVE-2026-71396
- Highest CVSS v3
- 7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Highest CVSS v4
- –
- Known exploited (KEV)
- No CVE from this advisory is on the KEV list as of the last refresh
- Sectors (per CISA)
- Transportation Systems
- Deployed
- United States, Canada
- Vendor HQ
- United States
Vulnerabilities
| CVE | Weakness | CVSS v3 | CVSS v4 | KEV | Description (from advisory) |
|---|---|---|---|---|---|
| CVE-2026-67560 | Stack-based Buffer Overflow | 7.5 | – | No | 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. |
| CVE-2026-68967 | Out-of-bounds Write | 6.5 | – | No | 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. |
| CVE-2026-71396 | Use of Hard-coded Credentials | 5.4 | – | No | The affected product uses hard-coded credentials, which could allow an attacker to disable automatic traction control. |
Affected products (11)
- 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
Vendor fixes and mitigations (from advisory)
- Mitigation: Bendix recommends users update their firmware to the most recent firmware version releases. Users that need more help should contact Bendix directly at [email protected]. link
- 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.
Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.
Sources
This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.