CVE-2026-71396 (GCVE-0-2026-71396)
Vulnerability from cvelistv5 – Published: 2026-08-27 20:45 – Updated: 2026-08-28 15:57
VLAI
EPSS
VEX
Title
Use of Hard-coded Credentials in Bendix EC80 Brake ECU
Summary
Bendix EC80 Brake ECU uses hard-coded credentials, which could allow an attacker to disable automatic traction control.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 15:49 UTC
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
Impacted products
11 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Bendix | EC80ESP+ J1708 |
Affected:
Z228999
Unaffected: Z300822 |
guessed | |
| Bendix | EC80ESP+ 6S/6M |
Affected:
Z228999
Unaffected: Z300822 |
guessed | |
| Bendix | EC80ESP+ PLC |
Affected:
Z228999
Unaffected: Z300822 |
guessed | |
| Bendix | EC80ESP+ 2nd CAN |
Affected:
Z228999
Unaffected: Z300822 |
guessed | |
| Bendix | EC80ESP+ Integrated TPMS |
Affected:
Z228999
Unaffected: Z300822 |
guessed | |
| Bendix | EC80ESP 6S/6M |
Affected:
Z266494
Unaffected: Z302578 |
guessed | |
| Bendix | EC80ESP PLC |
Affected:
Z266494
Unaffected: Z302578 |
guessed | |
| Bendix | EC80ESP 2nd CAN |
Affected:
Z266494
Unaffected: Z302578 |
guessed | |
| Bendix | EC80ESP CAN Gateway |
Affected:
Z266494
Unaffected: Z302578 |
guessed | |
| Bendix | EC80ESP 4S/4M |
Affected:
Z286098
Unaffected: Z302579 |
guessed | |
| Bendix | EC80ESP PLC |
Affected:
Z286098
Unaffected: Z302579 |
guessed |
Date Public
2026-08-25 14:28
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},
{
"defaultStatus": "unaffected",
"product": "EC80ESP CAN Gateway",
"vendor": "Bendix",
"versions": [
{
"status": "affected",
"version": "Z266494"
},
{
"status": "unaffected",
"version": "Z302578"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EC80ESP 4S/4M",
"vendor": "Bendix",
"versions": [
{
"status": "affected",
"version": "Z286098"
},
{
"status": "unaffected",
"version": "Z302579"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EC80ESP PLC",
"vendor": "Bendix",
"versions": [
{
"status": "affected",
"version": "Z286098"
},
{
"status": "unaffected",
"version": "Z302579"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Ben Gardiner of NMFTA reported this vulnerability to CISA."
}
],
"datePublic": "2026-08-25T14:28:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Bendix EC80 Brake ECU\u0026nbsp;uses hard-coded credentials, which could allow an attacker to disable automatic traction control."
}
],
"value": "Bendix EC80 Brake ECU\u00a0uses hard-coded credentials, which could allow an attacker to disable automatic traction control."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "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",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-798",
"description": "CWE-798 Use of Hard-coded Credentials",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T20:45:52.804Z",
"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"shortName": "icscert"
},
"references": [
{
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-05"
},
{
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-237-05.json"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
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"base64": false,
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"value": "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.\u003cdiv\u003e\u003cul\u003e\u003cli\u003eEC80ESP+ J1708: Users should update their firmware to version Z300822.\u003c/li\u003e\u003cli\u003eEC80ESP+ 6S/6M:\u0026nbsp;Users\n\n\u0026nbsp;should update their firmware to version Z300822.\u003c/li\u003e\u003cli\u003eEC80ESP+ PLC:\u0026nbsp;Users\u0026nbsp;\u0026nbsp;should update their firmware to version Z300822.\u003c/li\u003e\u003cli\u003eEC80ESP+ 2nd CAN:\nUsers\u0026nbsp;should update their firmware to version Z300822.\u003c/li\u003e\u003cli\u003eEC80ESP+ Integrated TPMS:\u0026nbsp;Users\u0026nbsp;should update their firmware to version Z300822.\u003c/li\u003e\u003cli\u003eEC80ESP 6S/6M:\nUsers\nshould update their firmware to version Z302578.\u003c/li\u003e\u003cli\u003eEC80ESP PLC:\nUsers\n\nshould update their firmware to version Z302578.\u003c/li\u003e\u003cli\u003eEC80ESP 2nd CAN:\nUsers\n\nshould update their firmware to version Z302578.\u003c/li\u003e\u003cli\u003eEC80ESP CAN Gateway:\nUsers\n\nshould update their firmware to version Z302578.\u003c/li\u003e\u003cli\u003eEC80ESP 4S/4M:\nUsers\n\nshould update their firmware to version Z302579.\u003c/li\u003e\u003cli\u003eEC80ESP PLC:\nUsers\n\nshould update their firmware to version Z302579.\u003c/li\u003e\u003c/ul\u003e\u003c/div\u003e"
}
],
"value": "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. * EC80ESP+ J1708: Users should update their firmware to version Z300822.\n * EC80ESP+ 6S/6M:\u00a0Users\n\n\u00a0should update their firmware to version Z300822.\n * EC80ESP+ PLC:\u00a0Users\u00a0\u00a0should update their firmware to version Z300822.\n * EC80ESP+ 2nd CAN:\nUsers\u00a0should update their firmware to version Z300822.\n * EC80ESP+ Integrated TPMS:\u00a0Users\u00a0should update their firmware to version Z300822.\n * EC80ESP 6S/6M:\nUsers\nshould update their firmware to version Z302578.\n * EC80ESP PLC:\nUsers\n\nshould update their firmware to version Z302578.\n * EC80ESP 2nd CAN:\nUsers\n\nshould update their firmware to version Z302578.\n * EC80ESP CAN Gateway:\nUsers\n\nshould update their firmware to version Z302578.\n * EC80ESP 4S/4M:\nUsers\n\nshould update their firmware to version Z302579.\n * EC80ESP PLC:\nUsers\n\nshould update their firmware to version Z302579."
}
],
"source": {
"advisory": "ICSA-26-237-05",
"discovery": "EXTERNAL"
},
"title": "Use of Hard-coded Credentials in Bendix EC80 Brake ECU",
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2026-71396",
"datePublished": "2026-08-27T20:45:52.804Z",
"dateReserved": "2026-08-10T16:03:40.501Z",
"dateUpdated": "2026-08-27T20:45:52.804Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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