{"id":"CVE-2025-34251","title":"Tesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability","summary":"Tesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability. The TCU runs the Android Debug Bridge (adbd) as root and, despite a “lockdown” check that disables adb shell, still permits a…","severity":"none","cwe":["CWE-269","CWE-288"],"published":"2025-10-07","updated":"2026-10-09","sourceUpdated":"2026-10-09T10:10:00.193","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-34251","references":[{"url":"https://www.nccgroup.com/research-blog/technical-advisory-tesla-telematics-control-unit-adb-auth-bypass/","label":"disclosure@vulncheck.com"},{"url":"https://www.tesla.com/","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/tesla-tcu-auth-bypass","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"epss":0.00446,"epssPercentile":0.36803,"ingestedAt":"2026-10-09T12:53:28.927Z","slug":"CVE-2025-34251","body":"## Overview\n\nTesla Telematics Control Unit (TCU) firmware prior to v2025.14 contains an authentication bypass vulnerability. The TCU runs the Android Debug Bridge (adbd) as root and, despite a “lockdown” check that disables adb shell, still permits adb push/pull and adb forward. Because adbd is privileged and the device’s USB port is exposed externally, an attacker with physical access can write an arbitrary file to a writable location and then overwrite the kernel’s uevent_helper or /proc/sys/kernel/hotplug entries via ADB, causing the script to be executed with root privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}