CVE-2026-86713

high

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.

References

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

https://github.com/PX4/PX4-Autopilot/commit/354823e2efd8dd7ac47f4b8984b8e0fb06dc3b79

https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/modules/load_mon/LoadMon.cpp

https://github.com/PX4/PX4-Autopilot

Details

Source: Mitre, NVD

Published: 2026-09-08

Updated: 2026-09-08

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:P/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Severity: High

CVSS v4

Base Score: 7.1

Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

Severity: High