CVE-2025-55078: 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, an attacker can cause a denial of service (crash) by providing a pointer to a reserved or unmapped memory region. Vulnerable system calls had a check of pointers, but that check wasn't verifying whether the pointer is outside the module memory region.

Affected products

• Eclipse Threadx: before 6.4.3 (fixed in 6.4.3)

Published 2025-10-14. Last modified 2026-10-08.