In CPDLC, False Emergency or Status Messages Will be Accepted as Legitimate

published 2026-08-07 3 mo ago modified 2026-09-29 41 d ago also EUVD-2025-210651

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

Injection of false emergency or status messages over CPDLC may lead to misallocation of resources, operational confusion, and improper response actions by flight crews, traffic controllers, and ground operations. This type of attack can be carried out remotely over radio frequency.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-219-01 updated 2026-08-07 cvss 7.1

CPDLC over ATN-B1 Vulnerabilities

ATN-B1 CPDLC
affected: mitigation, no fix available “Currently, there is no mitigation available for CVE-2025-71409, CVE-2025-71410, CVE-2025-71411, CVE-2025-71412, CVE-2025-71413.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-08-10)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
CNA	4.0	7.1	CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

ATN-B1 CPDLC

Classification

Weakness

CWE-754 Improper Check for Unusual or Exceptional Conditions

References

cisa.gov /news-events/ics-advisories/icsa-26-219-01
third-party-advisory

Sources

CVE List CVE-2025-71412
NVD CVE-2025-71412

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary