Overview
Recently, NSFOCUS CERT detected that HiddenLayer released a vulnerability report disclosing the Cursor remote code execution vulnerability (CVE-2025-62354). Because Cursor’s check function for terminal commands in autorun mode has a logical flaw, an unauthenticated attacker can bypass the preset allowlist restrictions by constructing specially crafted malicious input, thereby achieving remote code execution on the target host. The CVSS score is 9.8. At present, the details of vulnerability exploitation have been disclosed. Relevant users are requested to take measures for protection as soon as possible.
Reference link: https://hiddenlayer.com/sai_security_advisor/2025-11-cursor
Scope of Impact
Affected version
1.3.4 <= Cursor < 2.0
Unaffected version
Cursor >= 2.0
Mitigation
Official upgrade
At present, the official has released a new version to fix this vulnerability. Affected users are requested to upgrade the version as soon as possible for protection.
Download link: https://cursor.com/cn/downloads
Other protection measure
If the relevant users are temporarily unable to perform upgrade operations, the following measures can be used for temporary relief:
Turn off the Auto-Run Mode function in Cursor Settings:
Statement
This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.
About NSFOCUS
NSFOCUS, a pioneering leader in cybersecurity, is dedicated to safeguarding telecommunications, Internet service providers, hosting providers, and enterprises from sophisticated cyberattacks.
Founded in 2000, NSFOCUS operates globally with over 4000 employees at two headquarters in Beijing, China, and Santa Clara, CA, USA, and over 50 offices worldwide. It has a proven track record of protecting over 25% of the Fortune Global 500 companies, including four of the five largest banks and six of the world’s top ten telecommunications companies.
Leveraging technical prowess and innovation, NSFOCUS delivers a comprehensive suite of security solutions, including the Intelligent Security Operations Platform (ISOP) for modern SOC, DDoS Protection, Continuous Threat Exposure Management (CTEM) Service and Web Application and API Protection (WAAP). All the solutions and services are augmented by the Security Large Language Model (SecLLM), ML, patented algorithms and other cutting-edge research achievements developed by NSFOCUS.
