CVE-2025-64109

HIGH

Cursor CLI Beta < 2025.09.17-25b418f - MCP Project-Open Code Execution

Title source: manual
STIX 2.1

Description

Cursor is a code editor built for programming with AI. In versions and below, a vulnerability in the Cursor CLI Beta allowed an attacker to achieve remote code execution through the MCP (Model Context Protocol) server mechanism by uploading a malicious MCP configuration in .cursor/mcp.json file in a GitHub repository. Once a victim clones the project and opens it using Cursor CLI, the command to run the malicious MCP server is immediately executed without any warning, leading to potential code execution as soon as the command runs. This issue is fixed in version 2025.09.17-25b418f.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0038
EPSS Percentile 29.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (1)
cursor/cursor < 2025.09.17-25b418f
Published Nov 05, 2025
Tracked Since Feb 18, 2026