CVE-2026-32724 — PX4 autopilot has a heap Use-After-Free in MavlinkShell::available() via SERIAL_CONTROL Race Condition

CVE-2026-32724

PX4 autopilot has a heap Use-After-Free in MavlinkShell::available() via SERIAL_CONTROL Race Condition PUBLISHED

Description (CNA)

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 (CNA)

Vendor / product	Versions
PX4 / PX4-Autopilot	affected < 1.17.0-rc1

CWE

CWE-416

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.