VULNERABILITY INTELLIGENCE

CVE-2026-1579

CVSS score9.3 CRITICAL
EPSS probability0.96%
CISA KEVNot currently listed
Published2026-03-31
Last modified2026-07-29
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Description

The MAVLink communication protocol does not require cryptographic authentication by default. When MAVLink 2.0 message signing is not enabled, any message -- including SERIAL_CONTROL, which provides interactive shell access -- can be sent by an unauthenticated party with access to the MAVLink interface. PX4 provides MAVLink 2.0 message signing as the cryptographic authentication mechanism for all MAVLink communication. When signing is enabled, unsigned messages are rejected at the protocol level.

Weakness classification

  • CWE-306: Missing Authentication for Critical Function

Primary references