CVE-2025-71413

In CPDLC, Malformed or Out of Sequence Frames Can Cause Resets

Published Aug 7, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Description
Malformed or out-of-sequence frames at the Aviation Very High Frequency Link Control X.25 layers cause repeated resets which may result in increased workload and reduced situational awareness. This type of attack can be carried out remotely over radio frequency.

Remediation

Vendor Workaround

These vulnerabilities in the CPDLC protocol stack are exploitable in a lab environment. However, they require very specific conditions to be met and are unlikely to be exploited outside of a lab setting.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Atn-b1
Atn-b1 cpdlc
Vendors & Products Atn-b1
Atn-b1 cpdlc
Type Values Removed Values Added
Description Malformed or out-of-sequence frames at the Aviation Very High Frequency Link Control X.25 layers cause repeated resets which may result in increased workload and reduced situational awareness. This type of attack can be carried out remotely over radio frequency.
Title In CPDLC, Malformed or Out of Sequence Frames Can Cause Resets
Weaknesses CWE-754
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Aug 10, 2026, 9:13 PM
Reserved
Aug 4, 2026, 8:31 PM
Status
Deferred
Published
Aug 7, 2026, 7:17 PM
Modified
Sep 29, 2026, 11:10 AM