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CVE Vulnerability Details :
CVE-2025-62801
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-28 Oct, 2025 | 21:36
Updated At-29 Oct, 2025 | 14:54
Rejected At-
▼CVE Numbering Authority (CNA)
FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_name

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.

Affected Products
Vendor
jlowin
Product
fastmcp
Versions
Affected
  • < 2.13.0
Problem Types
TypeCWE IDDescription
CWECWE-78CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Type: CWE
CWE ID: CWE-78
Description: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Metrics
VersionBase scoreBase severityVector
4.05.4MEDIUM
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 5.4
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5
x_refsource_CONFIRM
Hyperlink: https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5
exploit
Hyperlink: https://github.com/jlowin/fastmcp/security/advisories/GHSA-rj5c-58rq-j5g5
Resource:
exploit
Details not found