CVE-2026-42469

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.

Score

CVSS 3.1 8.6 High

Status

Analyzed - cve@mitre.org

Published

2026-05-01

Last modified

2026-05-07

Weaknesses

CWE-121

Affected products

• Open Vehicle Monitoring System Firmware (Openvehicles)

References

• https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381
• https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1391