Buffer overflow in Openvehicles Open Vehicle Monitoring System
CVE-2026-37541
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.011 · change: +0.004
Affected products
Weakness classification (CWE)
References
- github.com/openvehicles/Open-Vehicle-Monitoring-System-3 (Product)
- gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 (Third Party Advisory)
- github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1393 (Issue Tracking)
Frequently asked questions
- What is CVE-2026-37541?
- CVE-2026-37541 is a critical-severity vulnerability in Openvehicles Open Vehicle Monitoring System, classified under Stack-based Buffer Overflow. CVSS score: 10.0/10. Published 2026-05-01.
- How severe is CVE-2026-37541?
- Critical severity. CVSS v3 base score is 10.0 out of 10.