CVE-2025-71410Network attack vector

Session termination via malformed link-control frames

Published Aug 7, 2026 · Updated Aug 7, 2026

Resource exhaustion in ATN-B1 CPDLC all versions allows remote authenticated users to terminate sessions via crafted radio frames. CISA identifies link-control frame handling as the locus but does not disclose which resource lacks a limit or why malformed frames terminate the session. Exploitation requires specific radio conditions; successful attacks disable CPDLC functions, force voice fallback, and increase controller workload.

CVSS severity6.0
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in ATN-B1 CPDLC all versions allows remote authenticated users to terminate sessions via crafted radio frames. CISA identifies link-control frame handling as the locus but does not disclose which resource lacks a limit or why malformed frames terminate the session. Exploitation requires specific radio conditions; successful attacks disable CPDLC functions, force voice fallback, and increase controller workload.

The record

CVE
CVE-2025-71410
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1499.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3ICS-CERTCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
6.0ICS-CERTCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.002Endpoint Denial of Service: Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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