{"id":"CVE-2026-37541","aliases":["EUVD-2026-26694","GHSA-6797-486q-qg9c"],"status":"published","title":"Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In...","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.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00678,"percentile":0.52603,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-05-01T00:00:00Z","modified":"2026-06-17T10:41:35Z","products":[{"vendor":"openvehicles","product":"open_vehicle_monitoring_system_firmware"}],"references":[{"url":"https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3","tags":["Product"]},{"url":"https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381","tags":["Third Party Advisory"]},{"url":"https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1393","tags":["Issue Tracking"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-37541"},{"url":"https://github.com/advisories/GHSA-6797-486q-qg9c"}],"sources":{"cve":[{"id":"CVE-2026-37541","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.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-07T18:39:48.746Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:39:16.730222Z"}],"euvd":[{"id":"EUVD-2026-26694","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.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-07T18:39:48Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N","level":"critical"}],"updated_at":"2026-11-02T19:05:14.902845Z"}],"ghsa":[{"id":"GHSA-6797-486q-qg9c","title":"Buffer overflow vulnerability in Open Vehicle Monitoring System 3 (OVMS3) 3.3.005. In...","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.","status":"published","published":"2026-05-01T18:31:25Z","modified":"2026-05-07T21:31:28Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:07:57.010667Z"}],"nvd":[{"id":"CVE-2026-37541","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.","status":"published","published":"2026-05-01T17:16:24.083Z","modified":"2026-06-17T10:41:35.2Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:17.022502Z"}]}}