CVE-2026-86713
Severity CVSS v4.0:
HIGH
Type:
CWE-416
Use After Free
Publication date:
08/09/2026
Last modified:
08/09/2026
Description
PX4 Autopilot through 1.17.0 contains a use-after-free vulnerability in the load_mon module's stop path where exit_and_cleanup() deletes the LoadMon object and frees the performance counter before perf_end() attempts to access it. Attackers can trigger this vulnerability by issuing the load_mon stop command from any PXH or MAVLink shell, causing reads and writes through freed memory that corrupt heap objects and destabilize the flight stack.
Impact
Base Score 4.0
7.10
Severity 4.0
HIGH
Base Score 3.x
7.10
Severity 3.x
HIGH
References to Advisories, Solutions, and Tools
- https://github.com/PX4/PX4-Autopilot
- https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/modules/load_mon/LoadMon.cpp
- https://github.com/PX4/PX4-Autopilot/commit/354823e2efd8dd7ac47f4b8984b8e0fb06dc3b79
- https://github.com/PX4/PX4-Autopilot/pull/28544
- https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-use-after-free-in-load-mon
- https://github.com/PX4/PX4-Autopilot/pull/28544


