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High CVSS 7.1

CVE-2025-71409

NVD analysis in progress

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.

What this means

Exposure
Exploitable remotely over the network, with an ordinary user account and with no action from the victim. The attack does require particular conditions, which makes it less systematic.
Impact
An attacker can modify or destroy data and degrade the service. The impact spreads beyond the vulnerable component into other parts of the system.
Weakness
A sensitive function is reachable with no authentication at all.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
7 August 2026
CVSS
7.1 (v3.1) CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
EPSS
0.2% probability of exploitation within 30 days · above 10% of all CVEs
Weakness
CWE-306
Sources
nvd
References

Type at least two characters.

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