{"id":"CVE-2026-42469","aliases":["EUVD-2026-26697","GHSA-42hh-9f29-4jj6"],"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_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.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00356,"percentile":0.29588,"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":"2026-11-08T16:10:00Z","products":[{"vendor":"openvehicles","product":"open_vehicle_monitoring_system_firmware"}],"references":[{"url":"https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381","tags":["Third Party Advisory"]},{"url":"https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/1391","tags":["Issue Tracking"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42469"},{"url":"https://github.com/advisories/GHSA-42hh-9f29-4jj6"}],"sources":{"cve":[{"id":"CVE-2026-42469","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.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-07T18:42:33.535Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-26697","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.","status":"published","published":"2026-05-01T00:00:00Z","modified":"2026-05-07T18:42:33Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T19:05:14.902845Z"}],"ghsa":[{"id":"GHSA-42hh-9f29-4jj6","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_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.","status":"published","published":"2026-05-01T18:31:25Z","modified":"2026-05-07T21:31:28Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:07:57.010667Z"}],"nvd":[{"id":"CVE-2026-42469","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.","status":"published","published":"2026-05-01T17:16:25.26Z","modified":"2026-11-08T16:10:00.183Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-08T18:10:35.384749Z"}]}}