CVE-2025-62801

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published10/28/2025

Last Modified11/4/2025

Sourcenvd

Honeypot Sightings0

Affected Products

jlowin:fastmcp

Weaknesses (CWE)

CWE-78

References

https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5(security-advisories@github.com)

https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.