RCE in Anysphere Cursor
CVE-2025-64106
Cursor is a code editor built for programming with AI. In versions 1.7.28 and below, an input validation flaw in Cursor's MCP server installation enables specially crafted deep-links to bypass the standard security warnings and conceal executed commands from users if they choose to accept the server. If an attacker is able to convince a victim to navigate to a malicious deeplink, the victim will not see the correct speedbump modal, and if they choose to accept, will execute commands specified by the attackers deeplink.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Anysphere Cursor
- Cursor — versions < 2.0
Weakness classification (CWE)
References
- github.com/cursor/cursor/security/advisories/GHSA-4575-fh42-7848 (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-64106?
- CVE-2025-64106 is a high-severity vulnerability in Anysphere Cursor, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-11-04.
- How severe is CVE-2025-64106?
- High severity. CVSS v3 base score is 8.8 out of 10.