Vulnerability · Published Aug 7, 2026 · Assigned by icscert

CVE-2025-71411In CPDLC, Broadcast Control Frames Can Disconnect Multiple Aircraft Simultaneously

Medium 5.3

In plain English

A medium-severity resource allocation without limits in CPDLC from ATN-B1. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.3%top 74.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 (as reported)

Vendor	Product	Versions
ATN-B1	CPDLC	All versions

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-219-01 third-party-advisory