Out of bound read in _nx_secure_tls_proc_clienthello_supported_versions_extension()
Priority LOW 36CWE-126Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-126 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00331 26th percentileScored 2026-11-07
Fix Fixed NetX Duo (Eclipse Foundation): 6.4.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | NetX Duo | before 6.4.4 | 6.4.4 | Patch available | CNA |
- NetX Duo VendorEclipse Foundation Affected before 6.4.4 Fixed in 6.4.4 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:* | before 6.4.4.202503 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:* Versions before 6.4.4.202503 Vulnerable ·Eclipse Foundation
Remediation
- Fix · CNA NetX Duo (Eclipse Foundation) Fixed in 6.4.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Eclipse Foundation NetX Duo 6.4.4
3 records Highest priority Priority HIGH 1 HIGH, 2 LOW
Other records, highest priority first
- TI-2025-34780 Potential out of bound read in _nx_ip_packet_receive()Priority HIGH 70
- TI-2025-34779 Potential out of bound read issue in _nx_ipv4_packet_receive() in NetX DuoPriority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2025-55084
References
More Eclipse Foundation Threadx Netx Duo vulnerabilities
- TI-2025-34780 Potential out of bound read in _nx_ip_packet_receive() CVSS 4.0MEDIUM 6.9
- TI-2025-34775 Web http client: Unchecked Server-Side Malicious Packet Issue CVSS 4.0HIGH 8.8
- TI-2025-34790 Uncontrolled resource consumption in Eclipse ThreadX - NetX Duo CVSS 4.0HIGH 8.7
- TI-2024-02278 Integer wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc() CVSS 3.1CRITICAL 9.8
- TI-2026-09997 Double free in Eclipse ThreadX - NetX Duo CVSS 3.1HIGH 7.5
- TI-2025-34783 Potential out-of-bounds read in _nx_icmpv6_validate_options() CVSS 4.0MEDIUM 6.9
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences