🛡️ CVE-2026-32743
🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-121 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

PX4 is an open-source autopilot stack for drones and unmanned vehicles. Versions 1.17.0-rc2 and below are vulnerable to Stack-based Buffer Overflow through the MavlinkLogHandler, and are triggered via MAVLink log request. The LogEntry.filepath buffer is 60 bytes, but the sscanf function parses paths from the log list file with no width specifier, allowing a path longer than 60 characters to overflow the buffer. An attacker with MAVLink link access can trigger this by first creating deeply nested directories via MAVLink FTP, then requesting the log list. The flight controller MAVLink task crashes, losing telemetry and command capability and causing DoS. This issue has been fixed in this commit: https://github.com/PX4/PX4-Autopilot/commit/616b25a280e229c24d5cf12a03dbf248df89c474.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-121
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-19
Updated 2026-06-02
Modified 2026-03-19

Affected Packages

Software From version Fixed in
px4-drone-autopilot — —

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