CVE-2025-55079: Eclipse Threadx

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In Eclipse ThreadX before version 6.4.3, the thread module has a setting of maximum priority. In some cases the check of that maximum priority wasn't performed, allowing, as a result, to obtain a thread with higher priority than expected and causing a possible denial of service.

Affected products

• Eclipse Threadx: before 6.4.3 (fixed in 6.4.3)

Published 2025-10-15. Last modified 2026-10-08.