{"id":"CVE-2026-32706","summary":"PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet","details":"PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, The crsf_rc parser accepts an oversized variable-length known packet and copies it into a fixed 64-byte global buffer without a bounds check. In deployments where crsf_rc is enabled on a CRSF serial port, an adjacent/raw-serial attacker can trigger memory corruption and crash PX4. This vulnerability is fixed in 1.17.0-rc2.","aliases":["GHSA-mqgj-hh4g-fg5p"],"modified":"2026-08-12T03:51:49.430491460Z","published":"2026-03-13T21:17:02.719Z","database_specific":{"cwe_ids":["CWE-120","CWE-787"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32706.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32706.json"},{"type":"ADVISORY","url":"https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-mqgj-hh4g-fg5p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32706"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/px4/px4-autopilot","events":[{"introduced":"0"},{"fixed":"d6f12ad1c4f70ad3230afd7d86e971421e02fef4"},{"introduced":"c2fb48990aacebc938c4e9998c7d5348f858fd22"},{"last_affected":"61904bc14a9c34f5f87012410b5f473e074e55d8"}],"database_specific":{"cpe":["cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:*","cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:alpha1:*:*:*:*:*:*","cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:beta1:*:*:*:*:*:*","cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:rc1:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"1.17.0"},{"introduced":"1.17.0-alpha1"},{"last_affected":"1.17.0-alpha1"},{"introduced":"1.17.0-beta1"},{"last_affected":"1.17.0-beta1"},{"introduced":"1.17.0-rc1"},{"last_affected":"1.17.0-rc1"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["1.17.0-alpha1","1.17.0-beta1","1.17.0-rc1","v1.17.0-rc2","v1.17.0-rc1","v1.17.0-beta1","v1.17.0-alpha1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32706.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"}]}