CVE-2025-71410 Malicious Link Control Frames Can Cause Loss of CPDLC Functions
Remote attackers can disrupt Controller-Pilot Data Link Communications by sending malicious radio frames, forcing a fallback to voice communication.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-71410?
CVE-2025-71410 is a medium-severity denial of service vulnerability in ATN-B1 CPDLC, published on 7 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Unnumbered Disconnect (U DISC) and malformed Aviation Very High Frequency Link Control frames can terminate sessions and lead to a loss of CPDLC functions requiring a reversion to voice communication and increased controller workload. This type of attack can be carried out remotely over radio frequency.
Weakness: CWE-770
Which versions are affected by CVE-2025-71410?
How do I fix CVE-2025-71410?
No fix has been published for CVE-2025-71410 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-71410 being exploited?
There is no known exploitation of CVE-2025-71410 in the wild and no public exploit code.
Sources
Also known as GHSA-pf92-3h27-4fqj.