CVE-2026-32706: Dronecode PX4 Drone Autopilot

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

PX4 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 copies it into a fixed 64-byte global buffer without a bounds check. In deployments where crsf_rc is enabled on a CRSF serial port, an adjacent/raw-serial attacker can trigger memory corruption and crash PX4. This vulnerability is fixed in 1.17.0-rc2.

Affected products

• Dronecode PX4 Drone Autopilot: before 1.17.0 (fixed in 1.17.0); version 1.17.0 only

Published 2026-03-16. Last modified 2026-06-17.