CVE-2026-42468: Open-Vehicle-Monitoring-System-3 · Buffer Overflow
Affects Open-Vehicle-Monitoring-System-3Source CVE Database V5
Not known to be exploited · CVSS 8.8 High · patch available : patch Open-Vehicle-Monitoring-System-3 soon.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubopenvehicles/Open-Vehicle-Monitoring-System-3pkg:github/openvehicles/Open-Vehicle-Monitoring-System-3Other threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Since OVMS3 is a cloud-hosted service, the vendor is responsible for applying patches and managing remediation. Users should verify with the vendor advisory that their service instance has been updated. No additional user action is required unless otherwise directed by the vendor. Patch status is confirmed as available, so ensure the service is running the patched version.
Description
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.