CVE-2026-32724

Published: Mar 16, 2026Modified: Jun 17, 2026

5.3

Vector

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

Exploitability: 1.6 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc1, a heap-use-after-free is detected in the MavlinkShell::available() function. The issue is caused by a race condition between the MAVLink receiver thread (which handles shell creation/destruction) and the telemetry sender thread (which polls the shell for available output). The issue is remotely triggerable via MAVLink SERIAL_CONTROL messages (ID 126), which can be sent by an external ground station or automated script. This vulnerability is fixed in 1.17.0-rc1.

Affected (3)

Products: Dronecode: Px4 Drone Autopilot

1 product

Px4 Drone Autopilot

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Dronecode Px4 Drone Autopilot	Before 1.17.0
Dronecode Px4 Drone Autopilot	Version 1.17.0 alpha1
Dronecode Px4 Drone Autopilot	Version 1.17.0 beta1

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (1)

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-j5w2-w79c-mqrw

Source: security-advisories@github.com

ExploitVendor Advisory

Timeline

No history available yet.