CVE-2025-71411

MEDIUM 5.3

In CPDLC, Broadcast Control Frames Can Disconnect Multiple Aircraft Simultaneously

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-770
Vendor	atn-b1
Product	cpdlc
Published	Aug 7, 2026

Stay Ahead of the Next One

Get instant alerts for atn-b1 cpdlc

Be the first to know when new medium vulnerabilities affecting atn-b1 cpdlc are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

ATN-B1 / CPDLC

All versions

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Martin Strohmeier of Armasuisse reported this vulnerability to CISA.