Use of Hard-coded Credentials in Bendix EC80 Brake ECU
Summary
| CVE | CVE-2026-71396 |
|---|---|
| State | PUBLISHED |
| Assigner | icscert |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-28 00:18:10 UTC |
| Updated | 2026-08-28 00:18:10 UTC |
| Description | Bendix EC80 Brake ECU uses hard-coded credentials, which could allow an attacker to disable automatic traction control. |
Risk And Classification
Primary CVSS: v4.0 5.3 MEDIUM from [email protected]
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-798 | CWE-798 CWE-798 Use of Hard-coded Credentials
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 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/E:X/C... |
| 4.0 | CNA | CVSS | 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 |
| 3.1 | [email protected] | Secondary | 5.4 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
| 3.1 | CNA | CVSS | 5.4 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
CVSS v4.0 Breakdown
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Bendix | EC80ESP J1708 | affected Z228999 | Not specified |
| CNA | Bendix | EC80ESP J1708 | unaffected Z300822 | Not specified |
| CNA | Bendix | EC80ESP 6S/6M | affected Z228999 | Not specified |
| CNA | Bendix | EC80ESP 6S/6M | unaffected Z300822 | Not specified |
| CNA | Bendix | EC80ESP PLC | affected Z228999 | Not specified |
| CNA | Bendix | EC80ESP PLC | unaffected Z300822 | Not specified |
| CNA | Bendix | EC80ESP 2nd CAN | affected Z228999 | Not specified |
| CNA | Bendix | EC80ESP 2nd CAN | unaffected Z300822 | Not specified |
| CNA | Bendix | EC80ESP Integrated TPMS | affected Z228999 | Not specified |
| CNA | Bendix | EC80ESP Integrated TPMS | unaffected Z300822 | Not specified |
| CNA | Bendix | EC80ESP 6S/6M | affected Z266494 | Not specified |
| CNA | Bendix | EC80ESP 6S/6M | unaffected Z302578 | Not specified |
| CNA | Bendix | EC80ESP PLC | affected Z266494 | Not specified |
| CNA | Bendix | EC80ESP PLC | unaffected Z302578 | Not specified |
| CNA | Bendix | EC80ESP 2nd CAN | affected Z266494 | Not specified |
| CNA | Bendix | EC80ESP 2nd CAN | unaffected Z302578 | Not specified |
| CNA | Bendix | EC80ESP CAN Gateway | affected Z266494 | Not specified |
| CNA | Bendix | EC80ESP CAN Gateway | unaffected Z302578 | Not specified |
| CNA | Bendix | EC80ESP 4S/4M | affected Z286098 | Not specified |
| CNA | Bendix | EC80ESP 4S/4M | unaffected Z302579 | Not specified |
| CNA | Bendix | EC80ESP PLC | affected Z286098 | Not specified |
| CNA | Bendix | EC80ESP PLC | unaffected Z302579 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cisa.gov/news-events/ics-advisories/icsa-26-237-05 | [email protected] | www.cisa.gov | |
| github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-23... | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Ben Gardiner of NMFTA reported this vulnerability to CISA. (en)
Additional Advisory Data
Solutions
CNA: 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]. * EC80ESP+ J1708: Users should update their firmware to version Z300822. * EC80ESP+ 6S/6M: Users should update their firmware to version Z300822. * EC80ESP+ PLC: Users should update their firmware to version Z300822. * EC80ESP+ 2nd CAN: Users should update their firmware to version Z300822. * EC80ESP+ Integrated TPMS: Users should update their firmware to version Z300822. * EC80ESP 6S/6M: Users should update their firmware to version Z302578. * EC80ESP PLC: Users should update their firmware to version Z302578. * EC80ESP 2nd CAN: Users should update their firmware to version Z302578. * EC80ESP CAN Gateway: Users should update their firmware to version Z302578. * EC80ESP 4S/4M: Users should update their firmware to version Z302579. * EC80ESP PLC: Users should update their firmware to version Z302579.