Vulnerability · CVE-2025-55084
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() i
Published Oct 16, 2025 · catalog updated Oct 16, 2025 · Eclipse Foundation NetX Duo
Last checked Nov 1, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-55084. EPSS is 0.33%. Act only if a listed version of Eclipse Foundation NetX Duo 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
- CVE-2025-55085 · High
- CVE-2025-55096 · Low
- CVE-2025-55094 · Medium
- CVE-2025-55093 · Medium
- CVE-2025-55092 · Medium
- Severity
- Medium6.9
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.33%
- Remediation
- Version ranges on file
- Affected products
- vendor Eclipse Foundation NetX Duo 0 <6.4.4
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
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 NetX Duo 0 <6.4.40 <6.4.4
How to fix CVE-2025-55084
Upgrade
CVE-2025-55084 lists a fix boundary at 6.4.4. Compare the installed build with that boundary before you change production.
Version check
Seen in 0 <6.4.4
Advisory
Open the cve_org record and follow its fix.
Official advisories
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-2025-55084. EPSS is 0.33%. Act only if a listed version of Eclipse Foundation NetX Duo is installed.
Which versions are affected?
Compare what you have installed with Eclipse Foundation NetX Duo 0 <6.4.4 0 <6.4.4. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.33%. 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.
Oct 16, 2025 · EUVD
Detected
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
Oct 16, 2025 · EUVD
Updated
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
Sources
- CVE.orgVulnerability recordCVE-2025-55084
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-55084
30-day exploitation probability 0.33%
first.org - EUVDVulnerability recordEUVD-2025-34716
In NetX Duo version before 6.4.4, the component of Eclipse Foundation ThreadX, there was an incorrect bound check in_nx_secure_tls_proc_clienthello_supported_versions_extension() in the extension version field.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 1, 2026
- CVE.orgOct 26, 2026
- EUVDOct 26, 2026