Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
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.
CVE-2026-92843
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-92843
Eclipse ThreadX - NetX Duo
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Eclipse Foundation",
"product": "Eclipse ThreadX - NetX Duo",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "6.5.1.202602"
},
{
"status": "unaffected",
"version": "6.5.2.202603"
}
],
"packageName": "NetX Duo",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-92843
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #42401 · Revision 1
- Added to Heist Feed
- Publisher date