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TI-2025-43524 Aliases CVE-2025-71410GHSA-pf92-3h27-4fqj

Malicious Link Control Frames Can Cause Loss of CPDLC Functions

Priority LOW 27CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00327 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ATN-B1CPDLCAll versions—No fix listedCNA
  • CPDLC VendorATN-B1 Affected All versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-71410
  2. 2026-10-03 Alias added: GHSA-pf92-3h27-4fqj

References

Advisory 1

  • TI-2025-43526 In CPDLC, False Emergency or Status Messages Will be Accepted as Legitimate CVSS 4.0HIGH 7.1
  • TI-2025-43523 No Authentication for Very High Frequency Data Link messages used in CPDLC CVSS 4.0HIGH 7.1
  • TI-2025-43527 In CPDLC, Malformed or Out of Sequence Frames Can Cause Resets CVSS 4.0MEDIUM 6.0
  • TI-2025-43525 In CPDLC, Broadcast Control Frames Can Disconnect Multiple Aircraft Simultaneously CVSS 4.0MEDIUM 6.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences