Vulnerability · Published Mar 13, 2026 · Assigned by GitHub_M

CVE-2026-32713PX4 Autopilot MAVLink FTP Session Validation Logic Error Allows Operations on Invalid File Descriptors

Medium 4.3

In plain English

A medium-severity security flaw in PX4-Autopilot from PX4. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.4%top 67.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, A logic error in the PX4 Autopilot MAVLink FTP session validation uses incorrect boolean logic (&& instead of ||), allowing BurstReadFile and WriteFile operations to proceed with invalid sessions or closed file descriptors. This enables an unauthenticated attacker to put the FTP subsystem into an inconsistent state, trigger operations on invalid file descriptors, and bypass session isolation checks. This vulnerability is fixed in 1.17.0-rc2.

Affected products (as reported)

Vendor	Product	Versions
PX4	PX4-Autopilot	< 1.17.0-rc2

Weakness: CWE-670 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-pp2c-jr5g-6f2m x_refsource_CONFIRM