CVE-2026-42469 Memory corruption in n/a
Remote attackers can cause denial of service or execute arbitrary code via crafted CANswitch frames due to improper validation in OVMS3.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-42469?
CVE-2026-42469 is a high-severity memory corruption vulnerability in n/a, published on 1 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-121
Which versions are affected by CVE-2026-42469?
It affects 1 product.
Products include Openvehicles Open Vehicle Monitoring System Firmware.
How do I fix CVE-2026-42469?
No fix has been published for CVE-2026-42469 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-42469 being exploited?
There is no known exploitation of CVE-2026-42469 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-42hh-9f29-4jj6.