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VulnerabilityPublished Updated

CVE-2026-42469: Open-Vehicle-Monitoring-System-3 · Buffer Overflow

Affects Open-Vehicle-Monitoring-System-3Source CVE Database V5

0

Not known to be exploited · CVSS 8.6 High · patch available : patch Open-Vehicle-Monitoring-System-3 soon.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
8.6High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 29% 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:N/S:U/C:L/I:L/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
GitHubopenvehicles/Open-Vehicle-Monitoring-System-3pkg:github/openvehicles/Open-Vehicle-Monitoring-System-3Other threatsAffected
  • =3.3.005
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 service, the vendor manages remediation and applies patches server-side. Users should verify with the vendor's advisory for confirmation of patch deployment. No additional user action is required unless otherwise directed by the vendor.

Description

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.

References

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