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CVE-2026-41682— pupnp: Port truncation via atoi() cast in parse_uri() allows SSRF port confusion

Quick assessment

Affected
pupnp pupnp
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.

pupnp是Portable SDK for UPnP Devices开源的一个应用软件。UPnP设备的便携式SDK。 pupnp 1.18.5之前版本存在安全漏洞，该漏洞源于parse_uri()中atoi()转换导致端口截断，容易受到SRRF端口混淆攻击。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
pupnp pupnp < 1.18.5 affected
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I. Basic Information for CVE-2026-41682

Vulnerability Information
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Vulnerability Title
pupnp: Port truncation via atoi() cast in parse_uri() allows SSRF port confusion
Source: CVE Program / CVE List V5
Vulnerability Description
pupnp is an SDK for development of UPnP device and control point applications. Prior to version 1.18.5, pupnp is vulnerable to SRRF port confusion due to port truncation via atoi() cast in parse_uri(). This issue has been patched in version 1.18.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
有符号至无符号转换错误
Source: CVE Program / CVE List V5
Vulnerability Title
pupnp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pupnp是Portable SDK for UPnP Devices开源的一个应用软件。UPnP设备的便携式SDK。 pupnp 1.18.5之前版本存在安全漏洞，该漏洞源于parse_uri()中atoi()转换导致端口截断，容易受到SRRF端口混淆攻击。
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
pupnp pupnp < 1.18.5 -

II. Public POCs for CVE-2026-41682

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III. Intelligence Information for CVE-2026-41682

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Patches & Fixes for CVE-2026-41682 (1)

Vendor Advisories for CVE-2026-41682 (1)

Vendor Pages for CVE-2026-41682 (1)

IV. Related Vulnerabilities

Same product: pupnp
Same vendor: pupnp
Same weakness: CWE-195

V. Comments for CVE-2026-41682

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