CVE-2026-11576

HIGH
MEDIUM Priority: 0.03 BB Relevance: 75/100
Published: 2026-06-19 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

The security fix for CVE-2025-0728 in eclipse-threadx NetX Duo refactors error handling in the HTTP server PUT process to use a shared cleanup label, but this unified cleanup path unconditionally calls fx_file_close() even when the file was never successfully opened. Multiple error branches jump to the shared cleanup label before any file open operation has occurred, causing fx_file_close() to operate on an uninitialized file handle, leading to undefined behavior, double-close issues, or memory corruption.

Weakness Classification (3)

Affected Software (1)

VendorProductVersion
eclipse threadx_netx_duo 6.4.2 – 6.5.0.202601

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.46%
Raw Score 0.004600
Percentile 39.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00460
2026-10-28
0.00460

Intelligence Sources

nvd ref →