Vulnerability · Published Jan 22, 2025 · Assigned by icscert

CVE-2024-11166Traffic Alert and Collision Avoidance System (TCAS) II has an External Control of System or Configuration Setting vulnerability

High 7.1

In plain English

A high-severity security flaw in Collision Avoidance Systems from Traffic Alert and Collision Avoidance System (TCAS) II. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.3%top 79.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Traffic Alert and Collision Avoidance System (TCAS) II	Collision Avoidance Systems	7.1

Weakness: CWE-15 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-021-01 government-resource