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CVE-2025-14542— Command execution in python-utcp allows attackers to achieve remote code execution when fetching a remote Manual from a malicious endpoint

Quick assessment

Affected
CVE-2025-14542
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Universal Tool Calling Protocol是Universal Tool Calling Protocol开源的一个UTCP的官方python实现库。 Universal Tool Calling Protocol存在安全漏洞，该漏洞源于客户端从远程Manual Endpoint获取工具的JSON规范时，恶意提供者可能更改手册以利用客户端。

CVSS 7.5 · High EPSS 0.26% · P18

I. Basic Information for CVE-2025-14542

Vulnerability Information
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Vulnerability Title
Command execution in python-utcp allows attackers to achieve remote code execution when fetching a remote Manual from a malicious endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
The vulnerability arises when a client fetches a tools’ JSON specification, known as a Manual, from a remote Manual Endpoint. While a provider may initially serve a benign manual (e.g., one defining an HTTP tool call), earning the clients’ trust, a malicious provider can later change the manual to exploit the client.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
违背信任边界
Source: CVE Program / CVE List V5
Vulnerability Title
Universal Tool Calling Protocol 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Universal Tool Calling Protocol是Universal Tool Calling Protocol开源的一个UTCP的官方python实现库。 Universal Tool Calling Protocol存在安全漏洞，该漏洞源于客户端从远程Manual Endpoint获取工具的JSON规范时，恶意提供者可能更改手册以利用客户端。
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)

II. Public POCs for CVE-2025-14542

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9211 chars
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III. Intelligence Information for CVE-2025-14542

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Patches & Fixes for CVE-2025-14542 (1)

Other References for CVE-2025-14542 (1)

IV. Related Vulnerabilities

Same weakness: CWE-501

V. Comments for CVE-2025-14542

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