CVE-2026-86713
PX4 Autopilot through 1.17.0 Use-After-Free in load_mon
- State
- Published
- Severity
- 7.1 High
- Published
- Sep 8, 2026
- Updated
- Sep 8, 2026
- Reserved
- Sep 8, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | 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 | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | VulnCheck |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
PX4-AutopilotPX4 |
|
References
- Fix Pull Requestpatchissue-tracking
- Patch Commitpatch
- https://github.com/PX4/PX4-Autopilotproduct
- LoadMon::Run() calls perf_end(_cycle_perf) after exit_and_cleanup(), v1.17.0technical-description
- VulnCheck Advisory: PX4 Autopilot through 1.17.0 Use-After-Free in load_monthird-party-advisory
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