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.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
PX4 PX4-Autopilot unaffected
Version Status Constraints
0 affected ≤ 1.17.0

No data.

No data.

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Vendors Products
Px4 Subscribe
Autopilot Subscribe

Project Subscriptions

Vendors Products
Px4 Subscribe
Autopilot Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/PX4/PX4-Autopilot cve-icon cve-icon
https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/modules/load_mon/LoadMon.cpp cve-icon cve-icon
https://github.com/PX4/PX4-Autopilot/commit/354823e2efd8dd7ac47f4b8984b8e0fb06dc3b79 cve-icon cve-icon
https://github.com/PX4/PX4-Autopilot/pull/28544 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-use-after-free-in-load-mon cve-icon cve-icon
History

Tue, 08 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 08 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
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.
Title PX4 Autopilot through 1.17.0 Use-After-Free in load_mon
First Time appeared Px4
Px4 autopilot
Weaknesses CWE-416
CPEs cpe:2.3:a:px4:autopilot:*:*:*:*:*:*:*:*
Vendors & Products Px4
Px4 autopilot
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H'}

cvssV4_0

{'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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-08T12:20:00.829Z

Reserved: 2026-09-08T10:58:30.836Z

Link: CVE-2026-86713

cve-icon Vulnrichment

Updated: 2026-09-08T12:19:56.063Z

cve-icon NVD

Status : Received

Published: 2026-09-08T12:17:00.150

Modified: 2026-09-08T13:17:31.313

Link: CVE-2026-86713

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T13:15:03Z

Weaknesses