Traffic Alert and Collision Avoidance System (TCAS) II has an External Control of System…
Priority LOW 31CWE-15Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
For TCAS II systems using transponders compliant with MOPS earlier than RTCA DO-181F, an attacker can impersonate a ground station and issue a Comm-A Identity Request. This action can set the Sensitivity Level Control (SLC) to the lowest setting and disable the Resolution Advisory (RA), leading to a denial-of-service condition.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00279 20th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Traffic Alert and Collision Avoidance System (TCAS) II | Collision Avoidance Systems | 7.1 | — | No fix listed | CNA |
- Collision Avoidance Systems VendorTraffic Alert and Collision Avoidance System (TCAS) II Affected 7.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11166
- 2026-10-03 Alias added: GHSA-7wv2-2269-6gj4
References
More Traffic Alert and Collision Avoidance System (TCAS) II vulnerabilities
- TI-2024-08642 Traffic Alert and Collision Avoidance System (TCAS) II has a Reliance on Untrusted Inputs… CVSS 4.0MEDIUM 6.0
Sources
- CVE-2024-11166 · CVE Program
- CVE-2024-11166 · NVD
- FIRST EPSS
- GHSA-7wv2-2269-6gj4 · GitHub Advisory Database · CC BY 4.0
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