{"schemaVersion":3,"id":"CVE-2026-32706","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2026-03-13T21:17:02.719Z","modified":"2026-03-17T15:41:50.077Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.1,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.1,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.1,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00326,"percentile":0.24236,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.017,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00309},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00326,"percentile":0.24236}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00309,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00311,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00326,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00326,"percentile":0.24236}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"GITHUB_PX4_PX4-AUTOPILOT","name":"Px4 Autopilot","source":"github","url":"https://github.com/PX4/PX4-Autopilot/issues/24915#issue-3091040552","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/120.html"},{"id":"CWE-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"dronecode","product":"px4_drone_autopilot","name":"px4 drone autopilot","label":"px4_drone_autopilot","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.17.0","noFixRecorded":false,"fixedIn":null},{"text":"1.17.0:alpha1","noFixRecorded":false,"fixedIn":null},{"text":"1.17.0:beta1","noFixRecorded":false,"fixedIn":null},{"text":"1.17.0:rc1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.17.0 | 1.17.0:alpha1 | 1.17.0:beta1 | 1.17.0:rc1","eol":null,"hubHref":"/vendor/dronecode/px4_drone_autopilot"},{"vendor":"px4","product":"px4-autopilot","name":"PX4-Autopilot","label":"px4-autopilot","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1.17.0-rc2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.17.0-rc2","eol":null,"hubHref":"/vendor/px4/px4-autopilot"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-mqgj-hh4g-fg5p","label":"github.com/PX4/PX4-Autopilot/security/advisories/GHSA-mqgj-hh4g-fg5p","hostname":"github.com","tags":["X Refsource CONFIRM","Exploit","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-13T21:17:02.719Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-17T15:41:50.077Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":42,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T01:14:25.268Z","stale":false,"partial":false}}