{"id":"CVE-2026-84698","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-84698","summary":"PX4 Autopilot sd_bench Heap Buffer Overflow via Block Size","details":"PX4 Autopilot contains a heap buffer overflow vulnerability in the sd_bench command that writes a four-byte block number into a user-supplied sized allocation. Attackers can invoke sd_bench with a block size below four bytes to overflow the heap buffer and potentially execute code or crash the system.","published":"2026-09-02T00:37:53.694Z","modified":"2026-09-03T03:48:20.203400553Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/84xxx/CVE-2026-84698.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-84698"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/px4-autopilot-sd-bench-heap-buffer-overflow-via-block-size"},{"type":"REPORT","url":"https://github.com/PX4/PX4-Autopilot/issues/28373"},{"type":"PACKAGE","url":"https://github.com/PX4/PX4-Autopilot"},{"type":"ARTICLE","url":"https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/systemcmds/sd_bench/sd_bench.cpp"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-03T03:48:20.203400553Z"}}