CVE-2026-42469

8.6 highEPSS 0.4%

High (8.6) in openvehicles open vehicle monitoring system firmware. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.6 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2026-05-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openvehicles:open_vehicle_monitoring_system_firmware

References

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

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