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Vulnerabilities

Vulnerability · CVE-2025-55079

In Eclipse ThreadX before version 6.4.3, the thread module has a setting of maximum priority.

Published Oct 15, 2025 · catalog updated Oct 15, 2025 · Eclipse Foundation ThreadX

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-55079. EPSS is 0.17%. Act only if a listed version of Eclipse Foundation ThreadX is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.17%
Remediation
Version ranges on file
Affected products
vendor Eclipse Foundation ThreadX 0 <6.4.3

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Eclipse Foundation ThreadX 0 <6.4.30 <6.4.3

How to fix CVE-2025-55079

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-55079. EPSS is 0.17%. Act only if a listed version of Eclipse Foundation ThreadX is installed.

Which versions are affected?

Compare what you have installed with Eclipse Foundation ThreadX 0 <6.4.3 0 <6.4.3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.17%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2025 · EUVD

    Detected

    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.

  2. Oct 15, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-55079

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-55079

    30-day exploitation probability 0.17%

    first.org
  • EUVDVulnerability recordEUVD-2025-34514

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • EUVDOct 26, 2026
  • CVE.orgOct 23, 2026
  • FIRST EPSSOct 23, 2026