CVE-2026-42469

8.6 HIGH 0.4% exploit odds No fix listed Memory safety Device

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-05-01 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 10:47 UTC Last updatedMost recent change to the record

Details

Published: 2026-05-01 17:16 UTC
Last modified: 2026-06-17 10:47 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-121
Record status: Analyzed

Affected

Openvehicles Open Vehicle Monitoring System Firmware 3.3.005

Attack profile CVSS 3.1 · 8.6

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: High

Raw vector

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

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References

NVD record · CVE.org record