CVE-2025-14542 HIGH

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

Weakness CWE-501
Published December 13, 2025
Last update December 13, 2025

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

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.

Key dates

Disclosure timeline

December 13, 2025 CVE published
December 13, 2025 Record updated