CVE-2025-62801 - CVE House
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Status published Medium CVE-2025-62801

FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_name

Vulnerability Description

FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

fastmcp
Vulnerable Versions:
< 2.13.0

Timeline

Official Publish: October 28th, 2025
Last Modified: October 29th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-78

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1059 Command and Scripting Interpreter
Execution
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1005 Data from Local System
Collection
T1041 Exfiltration Over C2 Channel
Exfiltration