Out-of-bounds read in NetX Secure X.509 parsing
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603 are affected. The NetX Secure X.509 parser accepts a certificate whose signature is an empty BIT STRING and records a signature length of 0xFFFFFFFF, which causes an out-of-bounds read (CWE-125). A remote peer can present such a certificate during the TLS handshake, before authentication, making the device read far outside the certificate buffer during signature verification, which is expected to fault.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, the NetX Secure X.509 parser accepts a certificate whose signature is an empty BIT STRING and records a signature length of 0xFFFFFFFF. A remote peer can present such a certificate during the TLS handshake, before authentication, and make the device read far outside the certificate buffer during signature verification, which is expected to fault.
Why it matters now
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 | Eclipse ThreadX NetX Duo | up to 6.5.2.202603 | 6.5.2.202603a | Patch available | CNA |
- Eclipse ThreadX NetX Duo VendorEclipse Foundation Affected up to 6.5.2.202603 Fixed in 6.5.2.202603a Patch available CNA
Remediation
Update Eclipse ThreadX NetX Duo to version 6.5.2.202603a, which fixes this flaw.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA Eclipse ThreadX NetX Duo (Eclipse Foundation) Fixed in 6.5.2.202603a
Timeline
- 2026-10-15 Threatist record created from CVE-2026-106464
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-18 CISA SSVC decision points changed
- 2026-10-18 Priority changed: LOW → MEDIUM
- 2026-11-04 Title updated · CNA
- 2026-11-04 Fix available: Eclipse Foundation/Eclipse ThreadX NetX [email protected] · CNA
References
More Eclipse Foundation vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2026-81947 Unauthenticated command injection in Eclipse Che che-machine-exec CVSS 3.1CRITICAL 9.8
- TI-2026-13216 CWE-863: ABAC authorization bypass via trailing slash route normalization in Eclipse BaSyx Go Components CVSS 3.1CRITICAL 9.8
- TI-2026-06514 Path traversal in Eclipse BaSyx CVSS 3.1CRITICAL 10.0
- TI-2026-01382 In the Eclipse Theia Website repository, the GitHub Actions workflow… CVSS 3.1CRITICAL 10.0
- TI-2026-74697 Authentication bypass in Eclipse Jetty EthereumAuthenticator CVSS 4.0CRITICAL 9.3
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences