Vulnerability · Published Aug 7, 2026 · Assigned by icscert

CVE-2025-71413In CPDLC, Malformed or Out of Sequence Frames Can Cause Resets

Medium 5.3

In plain English

A medium-severity security flaw 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

Malformed or out-of-sequence frames at the Aviation Very High Frequency Link Control X.25 layers cause repeated resets which may result in increased workload and reduced situational awareness. 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-754 · 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