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Vulnerability record · CVE-2026-32724 · published 16 March 2026

CVE-2026-32724: Dronecode px4 drone autopilot use after free vulnerability

Dronecode · Px4 Drone Autopilot

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.

5.3 CVSS 3.1 Medium EPSS 0.23% · top 87.4% CWE-416 · Use after free
5.3CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-46256Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerabili…EPSS 0.63%8.1CVE-2026-32706Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, The crsf_rc parser accepts an oversized variable-length known packet and …EPSS 0.31%8.1CVE-2026-26741Dronecode px4 drone autopilot missing authorization vulnerabilityPX4 Autopilot versions 1.12.x through 1.15.x contain a logic flaw in the mode switching mechanism. When switching from Auto mode to Manual mode while…EPSS 0.29%8.1CVE-2026-26742Dronecode px4 drone autopilot missing authorization vulnerabilityPX4 Autopilot versions 1.12.x through 1.15.x contain a protection mechanism failure in the "Re-arm Grace Period" logic. The system incorrectly applie…EPSS 0.30%8.0CVE-2026-32708Dronecode px4 drone autopilot stack-based buffer overflow vulnerabilityPX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incomin…EPSS 0.26%7.9CVE-2024-40427Dronecode px4 drone autopilot classic buffer overflow vulnerabilityStack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to ref…EPSS 0.35%7.5CVE-2024-38952Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4-Autopilot v1.14.3 was discovered to contain a buffer overflow via the topic_name parameter at /logger/logged_topics.cpp.EPSS 0.70%7.5CVE-2021-46896Dronecode px4 drone autopilot classic buffer overflow vulnerabilityBuffer Overflow vulnerability in PX4-Autopilot allows attackers to cause a denial of service via handler function handling msgid 332.EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2026-32724), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.