Vulnerability · Published Oct 20, 2026 · Assigned by eclipse
CVE-2026-94018NetX Duo Web HTTP server releases an uninitialized packet pointer on the PUT Content-Length underflow path
High 8.8
In plain English
A high-severity security flaw 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 0.4% (higher than 34% of all known vulnerabilities).
Severity (CVSS 4.0)8.8High
Exploit odds (30 days)0.4%top 66.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The Web add-on's HTTP server dereferences and releases an uninitialized pointer when it detects a `Content-Length` underflow while processing a `PUT` request. The condition is reachable by an unauthenticated remote client with a single malformed request.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Eclipse Foundation | Eclipse ThreadX - NetX Duo | 6.4.2 – through 6.5.1.202602 |
Weakness: CWE-457, CWE-824 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N