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archive/Patch now/AIR-2025-0505
closedclosed 1 Dec 2025Patch now2 Disclosed vulnerabilityAI

MCP Watch Command Injection Vulnerability CVE-2025-66401

MCP Watch

MCP Watch contains a command injection vulnerability in the cloneRepo method due to unsanitized input passed to the system shell. An attacker can execute arbitrary commands on the host machine by exploiting this flaw.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
9.8
EPSS
0.02 · top 18% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
1 Dec 2025
last update
1 Dec 2025
CVE ids
CVE-2025-66401other records

Timeline · 1

  1. 1 Dec 2025CVE-2025-66401: MCP Watch is a comprehensive security scanner for Model Context Protocol (MCP) servers.

Sources · 1

Advisories and databases

  1. 2025-12-01
    CVE-2025-66401: MCP Watch is a comprehensive security scanner for Model Context Protocol (MCP) servers.
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-66401

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
command-injection
dates
happened 1 Dec 2025 · first reported 1 Dec 2025
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# MCP Watch Command Injection Vulnerability CVE-2025-66401

https://gcdradar.vercel.app/incidents/mcp-watch-command-injection-vulnerability-cve-2025-66401 · AIR-2025-0505 · closed 2025-12-01

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-12-01
- AI role: Attack on AI
- Products: MCP Watch
- CVE ids: CVE-2025-66401
- CVSS: 9.8

## Summary

MCP Watch contains a command injection vulnerability in the cloneRepo method due to unsanitized input passed to the system shell. An attacker can execute arbitrary commands on the host machine by exploiting this flaw.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-12-01: CVE-2025-66401: MCP Watch is a comprehensive security scanner for Model Context Protocol (MCP) servers. (https://nvd.nist.gov/vuln/detail/CVE-2025-66401)

## Sources

- 2025-12-01 NVD: CVE-2025-66401: MCP Watch is a comprehensive security scanner for Model Context Protocol (MCP) servers. https://nvd.nist.gov/vuln/detail/CVE-2025-66401

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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