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CVE-2025-2259— Eclipse ThreadX NetX Duo component HTTP server single PUT request integer underflow

Quick assessment

Affected
Eclipse Foundation ThreadX
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Eclipse ThreadX NetX Duo是Eclipse ThreadX开源的一个 IPv4 和 IPv6 双重网络堆栈。 Eclipse ThreadX NetX Duo 6.4.3之前版本存在安全漏洞，该漏洞源于整数下溢，可能导致拒绝服务。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.95% · P60

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-2259

Vulnerability Information
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Vulnerability Title
Eclipse ThreadX NetX Duo component HTTP server single PUT request integer underflow
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
Eclipse ThreadX NetX Duo 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Eclipse ThreadX NetX Duo是Eclipse ThreadX开源的一个 IPv4 和 IPv6 双重网络堆栈。 Eclipse ThreadX NetX Duo 6.4.3之前版本存在安全漏洞，该漏洞源于整数下溢，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation ThreadX 0 ~ 6.4.2 -

II. Public POCs for CVE-2025-2259

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III. Intelligence Information for CVE-2025-2259

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Same Patch Batch · Eclipse Foundation · 2025-04-06 · 3 CVEs total

CVE-2025-2260 Eclipse ThreadX NetX Duo HTTP component server denial of service
CVE-2025-2258 Eclipse ThreadX NetX Duo HTTP server single PUT request integer underflow

IV. Related Vulnerabilities

Same product: ThreadX
Same vendor: Eclipse Foundation
Same weakness: CWE-191

V. Comments for CVE-2025-2259

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