CVE-2026-42468 json
Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005.
published 2026-05-01 6 mo ago modified 2026-11-08 17 h ago also EUVD-2026-26696
- cvss
- 8.8
- 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 36%
- public exploits
- 0
- none known
Summary
Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_pcap.cpp , the parser's phdr.len field is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted PCAP input.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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/1392
issue-tracking
Sources
- CVE List CVE-2026-42468
- NVD CVE-2026-42468
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