CVE-2025-55079 Missing check for thread priority
Attackers can create threads with higher priority than allowed, potentially causing a denial of service in Eclipse ThreadX.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55079?
CVE-2025-55079 is a medium-severity denial of service vulnerability in Eclipse Foundation ThreadX, published on 15 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-770
Which versions are affected by CVE-2025-55079?
It affects 1 product.
Products include Eclipse Threadx.
How do I fix CVE-2025-55079?
No fix has been published for CVE-2025-55079 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-55079 being exploited?
There is no known exploitation of CVE-2025-55079 in the wild and no public exploit code.
Other vulnerabilities in Eclipse Foundation ThreadX
- CVE-2026-0648 Memory corruption in Eclipse ThreadX
- CVE-2024-2212 Integer overflow in ThreadX
- CVE-2025-55080 Improper Parameter Check in ThreadX Syscall Implementation
- CVE-2024-2214 Missing array size check in _Mtxinit() in the Xtensa port
- CVE-2025-55078 Incomplete validation of kernel object pointers in system calls
Sources
Also known as GHSA-w8rw-fqgj-9r49.