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CVE-2025-71409

No Authentication for Very High Frequency Data Link messages used in CPDLC

HIGH
7.1
CVSS Score
Published: August 7, 2026 at 07:02 PM UTC
Updated: September 29, 2026 at 11:10 AM UTC
1 product affected across 1 vendorCPDLC

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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Lack of authentication for Very High Frequency Data Link messages allows rogue ground stations to inject CPDLC messages leading to unexpected or misleading clearances and potential pilot confusion. This type of attack can be carried out remotely over radio frequency.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

CPDLC· Atn B1
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: cverecord
https://www.cisa.gov/news-events/ics-advisories/icsa-26-219-01

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHicscert
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-306

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