CVE-2026-32724: medium-severity vulnerability in PX4-Autopilot
PX4 autopilot has a heap Use-After-Free in MavlinkShell::available() via SERIAL_CONTROL Race Condition
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.2%
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.
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
PX4 · PX4-AutopilotRelated CVEs — PX4-Autopilot
In the same product, most dangerous first.
CVE-2023-46256MEDIUMPX4-Autopilot Heap Buffer Overflow BugEPSS 0.7%CVE-2023-47625LOWGlobal Buffer Overflow leading to denial of service in PX4-AutopilotEPSS 0.5%CVE-2026-102809HIGHPX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 CommandEPSS 0.5%CVE-2026-32709MEDIUMPX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)EPSS 0.5%CVE-2026-84698HIGHPX4 Autopilot sd_bench Heap Buffer Overflow via Block SizeEPSS 0.4%CVE-2026-86097HIGHPX4 Autopilot through 1.17.0 Null Pointer Dereference via param selectEPSS 0.4%