CVE-2025-64109

HIGH EPSS 33.4%

Published Nov 5, 20257mo ago · Modified Jun 17, 20262w ago

8.8 CVSS 3.1

High

Published Nov 5, 2025 7mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

8.8

Exploitability

2.8

Impact

5.9

Vector string

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

33.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

References 1

github.com https://github.com/cursor/cursor/security/advisories/GHSA-4hwr-97q3-37w2

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.