CVE-2025-2259

HIGH

Eclipse ThreadX NetX Duo < 6.4.3 - Denial of Service via Integer Underflow in HTTP Server

Title source: llm
STIX 2.1

Description

In NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.3, an attacker can cause an integer underflow and a subsequent denial of service by writing a very large file, by specially crafted packets with Content-Length in one packet smaller than the data request size of the other packet. A possible workaround is to disable HTTP PUT support. This issue follows an incomplete fix of CVE-2025-0727

References (3)

Core 3

Scores

CVSS v3 7.5
EPSS 0.0084
EPSS Percentile 52.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-191
Status published
Products (1)
eclipse/threadx_netx_duo < 6.4.3
Published Apr 06, 2025
Tracked Since Feb 18, 2026