Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/PX4/PX4-Autopilot
- https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/systemcmds/sd_bench/sd_ben
- https://github.com/PX4/PX4-Autopilot/issues/28373
- https://www.vulncheck.com/advisories/px4-autopilot-sd-bench-heap-buffer-overflow
- https://github.com/PX4/PX4-Autopilot/issues/28373
FAQ
What is CVE-2026-84698?
CVE-2026-84698 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 blo...
How severe is CVE-2026-84698?
CVE-2026-84698 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-84698?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.