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.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381	Third Party Advisory
https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1391	Issue Tracking

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:openvehicles:open_vehicle_monitoring_system_firmware:3.3.005:*:*:*:*:*:*:*

cpe:2.3:h:openvehicles:open_vehicle_monitoring_system:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-01 17:16

Updated : 2026-06-17 10:47

NVD link : CVE-2026-42469

Mitre link : CVE-2026-42469

CVE.ORG link : CVE-2026-42469

JSON object : View

Products Affected

openvehicles

open_vehicle_monitoring_system
open_vehicle_monitoring_system_firmware

CWE

CWE-121

Stack-based Buffer Overflow

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