CVE-2026-37541 — CRITICAL (10.0)

Vulnerability Description

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.

CVSS Score

10.0

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Openvehicles	Open Vehicle Monitoring System Firmware	3.3.005
Openvehicles	Open Vehicle Monitoring System	-

Related Weaknesses (CWE)

CWE-121

References

https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381Third Party Advisory
https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3Product
https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1393Issue Tracking

FAQ

What is CVE-2026-37541?

CVE-2026-37541 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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...

How severe is CVE-2026-37541?

CVE-2026-37541 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-37541?

Check the references section above for vendor advisories and patch information. Affected products include: Openvehicles Open Vehicle Monitoring System Firmware, Openvehicles Open Vehicle Monitoring System.