{"schemaVersion":3,"id":"CVE-2026-32708","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incoming payload length without bounds. A remote Zenoh publisher can send an oversized fragmented message to force an unbounded stack allocation and copy, causing a stack overflow and crash of the Zenoh bridge task. This vulnerability is fixed in 1.17.0-rc2.","dates":{"published":"2026-03-13T21:18:53.025Z","modified":"2026-03-17T15:32:42.537Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00269,"percentile":0.17947,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.028000000000000032,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00241},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00269,"percentile":0.17947}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00241,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00257,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00269,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00269,"percentile":0.17947}]},"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-121","name":"Stack-based Buffer Overflow","description":"A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/121.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-69g4-hcqf-j45p","label":"github.com/PX4/PX4-Autopilot/security/advisories/GHSA-69g4-hcqf-j45p","hostname":"github.com","tags":["X Refsource CONFIRM","Exploit","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-13T21:18:53.025Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-17T15:32:42.537Z","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":"2026-10-20T13:16:31.616Z","stale":false,"partial":false}}