CVE-2026-92843

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Source
https://cve.org/CVERecord?id=CVE-2026-92843
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92843.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92843
Aliases
  • GHSA-4m85-f9qh-q3jv
Published
2026-10-20T15:12:55Z
Modified
2026-10-21T03:00:15Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
Details

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.

Database specific 
{
    "cna_assigner":  "eclipse",
    "cwe_ids":  [
        "CWE-125"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92843.json"
}
References

Affected packages

Git / github.com/eclipse-threadx/netxduo

Affected ranges

Type
GIT
Repo
https://github.com/eclipse-threadx/netxduo
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
1a0e9e43a03e37ddecfb6b49e9b078d6e1803d05
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "6.5.1.202602"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        }
    ]
}

Affected versions

v.*
v.6.4.4.202503_rel
v6.*
v6.0.1_rel
v6.0.2_rel
v6.0_rel
v6.1.10_rel
v6.1.11_rel
v6.1.12_rel
v6.1.2_rel
v6.1.3_rel
v6.1.4_rel
v6.1.5_rel
v6.1.6_rel
v6.1.7_rel
v6.1.8_rel
v6.1.9_rel
v6.1_rel
v6.2.0_rel
v6.2.1_rel
v6.3.0_rel
v6.4.0_rel
v6.4.1_rel
v6.4.2_rel
v6.4.3_rel
v6.4.4.202503a
v6.4.5.202504_rel
v6.5.0.202601_rel
v6.5.1.202602_rel

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92843.json"