CVE-2026-92843GHSA-4m85-f9qh-q3jv
Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
Eclipse Foundation Eclipse ThreadX - NetX Duo
CVSS
8.7HighExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.30%Chance of exploitation activity in the next 30 days, higher than 21% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
A missing bounds check in the TLS 1.3 Certificate-message parser of NetX Secure lets a malicious TLS 1.3 server trigger an unsigned-integer underflow and a subsequent heap out-of-bounds read in any peer that processes a remote Certificate message. It is reachable pre-authentication, during the normal handshake, before certificate verification completes.
Text from CVE List
Affected versions 2
- Eclipse ThreadX - NetX Duoaffected: all versions through 6.5.1.202602CVE List
- Eclipse ThreadX - NetX Duounaffected: 6.5.2.202603CVE List