CVE-2025-71412Network attack vector

Operational confusion via accepted false messages

Published Aug 7, 2026 · Updated Aug 7, 2026

Improper message validation in all versions of ATN-B1 CPDLC allows remote attackers to inject false emergency or status messages over radio frequency. The CPDLC protocol stack accepts injected emergency and status messages as legitimate; CISA has not disclosed the exact validation check that fails. Exploitation requires low protocol privileges and specific radio conditions demonstrated in a lab; accepted messages can misdirect flight crews, controllers, and ground operations.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper message validation in all versions of ATN-B1 CPDLC allows remote attackers to inject false emergency or status messages over radio frequency. The CPDLC protocol stack accepts injected emergency and status messages as legitimate; CISA has not disclosed the exact validation check that fails. Exploitation requires low protocol privileges and specific radio conditions demonstrated in a lab; accepted messages can misdirect flight crews, controllers, and ground operations.

The record

CVE
CVE-2025-71412
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-754, T1565.002
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

7.1ICS-CERTCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
7.1ICS-CERTCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L

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-754Improper Check for Unusual or Exceptional Conditions
T1565.002Transmitted Data Manipulation

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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