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.
Published: 2026-08-07
Score: 6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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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

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History

Mon, 10 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sat, 08 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Atn-b1
Atn-b1 cpdlc
Vendors & Products Atn-b1
Atn-b1 cpdlc

Fri, 07 Aug 2026 19:15:00 +0000

Type Values Removed Values Added
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.
Title Malicious Link Control Frames Can Cause Loss of CPDLC Functions
Weaknesses CWE-770
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-08-10T21:13:04.861Z

Reserved: 2026-08-04T20:31:35.645Z

Link: CVE-2025-71410

cve-icon Vulnrichment

Updated: 2026-08-10T18:42:19.071Z

cve-icon NVD

Status : Received

Published: 2026-08-07T19:17:33.893

Modified: 2026-08-10T22:17:08.767

Link: CVE-2025-71410

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-08T20:40:38Z

Weaknesses