Medium severity · published Oct 15, 2025
CVE-2025-55079
Missing check for thread priority
5.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TH
ThreadX · Eclipse Foundation
before 6.4.3 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55079
Exploit
https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-w8rw-fqgj-9r49
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