CVE-2025-71411: Atn-b1 Cpdlc

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Broadcast control frames can disconnect multiple aircraft simultaneously leading to delayed clearances and air traffic controller overload. This type of attack can be carried out remotely over radio frequency.

Affected products

Published 2026-08-07. Last modified 2026-09-29.