What’s Vulnerable › Vulnerabilities

CVE-2026-86713: PX4 Autopilot through 1.17.0 Use-After-Free in load_mon

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-08
• Weakness: CWE-416

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.

Affected products

• PX4-Autopilot: through 1.17.0

References

• 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

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