CVE-2026-42469 json
Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005.
published 6mo ago modified yesterday also EUVD-2026-26697
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_canswitch.cpp the parser does not properly validate a CANswitch DLC value, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted CANswitch frames.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 6mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
gist.github.com
/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381
third-party-advisory
-
github.com
/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1391
issue-tracking
Sources
- CVE List CVE-2026-42469
- NVD CVE-2026-42469
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