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CVE-2026-94018

NetX Duo Web HTTP server releases an uninitialized packet pointer on the PUT Content-Length underflow path

HIGH
8.8
CVSS Score
Published: October 20, 2026 at 03:10 PM UTC
Updated: October 20, 2026 at 07:48 PM UTC
1 product affected across 1 vendorThreadx Netx Duo

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Threadx Netx Duo· Eclipse
90%
6.4.2
Vendor states this is fixed in 6.5.2.202603 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-wjxf-gjm5-jh5q

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHeclipse
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-457CWE-824

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