CVE-2026-32709: medium-severity vulnerability in PX4-Autopilot
PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.5%
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, An unauthenticated path traversal vulnerability in the PX4 Autopilot MAVLink FTP implementation allows any MAVLink peer to read, write, create, delete, and rename arbitrary files on the flight controller filesystem without authentication. On NuttX targets, the FTP root directory is an empty string, meaning attacker-supplied paths are passed directly to filesystem syscalls with no prefix or sanitization for read operations. On POSIX targets (Linux companion computers, SITL), the write-path validation function unconditionally returns true, providing no protection. A TOCTOU race condition in the write validation on NuttX further allows bypassing the only existing guard. This vulnerability is fixed in 1.17.0-rc2.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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-2026-84698HIGHPX4 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%CVE-2026-32713MEDIUMPX4 Autopilot MAVLink FTP Session Validation Logic Error Allows Operations on Invalid File DescriptorsEPSS 0.4%