CVE-2025-71411 In CPDLC, Broadcast Control Frames Can Disconnect Multiple Aircraft Simultaneously
Remote attackers can disconnect multiple aircraft simultaneously via broadcast control frames, causing air traffic control overload and delayed clearances.
- 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-2025-71411?
CVE-2025-71411 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
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.
Weakness: CWE-770
Which versions are affected by CVE-2025-71411?
How do I fix CVE-2025-71411?
No fix has been published for CVE-2025-71411 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-2025-71411 being exploited?
There is no known exploitation of CVE-2025-71411 in the wild and no public exploit code.
Sources
Also known as GHSA-3rjh-r4h7-c3mq.