Vulnerability · Published Oct 14, 2026 · Assigned by eclipse
CVE-2026-106464Out-of-bounds read via an empty signature BIT STRING in NetX Secure X.509 parsing
High 8.7
In plain English
A high-severity out-of-bounds read in Eclipse ThreadX NetX Duo from Eclipse Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Eclipse Foundation | Eclipse ThreadX NetX Duo | 0 – through 6.5.2.202603 |
Weakness: CWE-125, CWE-191 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N