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Vulnerabilities

Vulnerability · CVE-2026-37541

Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005.

Published May 1, 2026 · catalog updated Jun 17, 2026 · open vehicle monitoring system firmware

Check if you run it

No confirmed exploitation is on record for CVE-2026-37541. EPSS is 1.11%. Act only if a listed version of open vehicle monitoring system firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical10.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.11%
Remediation
Advisory link
Affected products
cpe openvehicles/open vehicle monitoring system firmware

Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe openvehicles/open vehicle monitoring system firmware3.3.005

How to fix CVE-2026-37541

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-37541. EPSS is 1.11%. Act only if a listed version of open vehicle monitoring system firmware is installed.

Which versions are affected?

Compare what you have installed with openvehicles/open vehicle monitoring system firmware 3.3.005. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow. EPSS 1.11%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 1, 2026 · NIST NVD

    Detected

    Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.

Sources

  • CVE.orgVulnerability recordCVE-2026-37541

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-37541

    30-day exploitation probability 1.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-37541

    Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In canformat_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.