In CPDLC, Malformed or Out of Sequence Frames Can Cause Resets
Priority LOW 27CWE-754Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00327 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-71413
- 2026-10-03 Alias added: GHSA-hppf-fwr2-8p5x
References
More ATN-B1 vulnerabilities
- TI-2025-43526 In CPDLC, False Emergency or Status Messages Will be Accepted as Legitimate CVSS 4.0HIGH 7.1
- TI-2025-43523 No Authentication for Very High Frequency Data Link messages used in CPDLC CVSS 4.0HIGH 7.1
- TI-2025-43525 In CPDLC, Broadcast Control Frames Can Disconnect Multiple Aircraft Simultaneously CVSS 4.0MEDIUM 6.0
- TI-2025-43524 Malicious Link Control Frames Can Cause Loss of CPDLC Functions CVSS 4.0MEDIUM 6.0
Sources
- CVE-2025-71413 · CVE Program
- CVE-2025-71413 · NVD
- FIRST EPSS
- GHSA-hppf-fwr2-8p5x · GitHub Advisory Database · CC BY 4.0
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