CVE-2026-32706 HIGH

CVE-2026-32706: PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet

Vendor Px4
Product PX4-Autopilot
Weakness CWE-120
Published March 13, 2026
Last update March 17, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 13, 2026 CVE published
March 17, 2026 Record updated