CVE-2026-37541 Memory corruption in n/a

Critical 10.0 Published 1 May 2026 Updated 7 May 2026

Remote attackers can cause denial of service or execute arbitrary code via crafted GVRET frames due to improper length 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-2026-37541?

CVE-2026-37541 is a critical 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_gvret.cpp, the length field in GVRET binary data is not properly validated, allowing remote attackers to cause a denial of service or possibly execute arbitrary code via crafted GVRET frames.

Weakness: CWE-121

Which versions are affected by CVE-2026-37541?

It affects 1 product.

Products include Openvehicles Open Vehicle Monitoring System Firmware.

How do I fix CVE-2026-37541?

No fix has been published for CVE-2026-37541 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-2026-37541 being exploited?

There is no known exploitation of CVE-2026-37541 in the wild and no public exploit code.

Sources

Also known as GHSA-6797-486q-qg9c.