CVE-2025-62354
📋 TL;DR
This CVE describes a command injection vulnerability in Cursor that allows unauthorized attackers to bypass allowlist restrictions and execute arbitrary operating system commands. Attackers can achieve remote code execution with high privileges, affecting all systems running vulnerable versions of Cursor software.
💻 Affected Systems
- Cursor
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install malware, exfiltrate sensitive data, pivot to other systems, and establish persistent backdoors.
Likely Case
Attackers execute commands to steal credentials, deploy cryptocurrency miners, or use the system as part of a botnet for DDoS attacks.
If Mitigated
Limited impact with only allowed commands executing, though potential for privilege escalation remains if allowlist bypass is partial.
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity; attackers can craft malicious input to execute arbitrary commands.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://hiddenlayer.com/sai_security_advisor/2025-11-cursor/
Restart Required: Yes
Instructions:
1. Monitor vendor channels for security updates. 2. Apply patch when available. 3. Restart affected services after patching. 4. Verify fix implementation.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement strict input validation and sanitization for all user-supplied data passed to command execution functions.
Network Segmentation
allIsolate Cursor instances in restricted network segments to limit potential lateral movement if compromised.
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted sources only
- Deploy application-level firewalls or WAFs with command injection detection rules
🔍 How to Verify
Check if Vulnerable:
Check Cursor version against vendor advisory; test with controlled input to command functions to see if arbitrary commands execute.Check Version:
cursor --version or consult application documentation for version checking methodVerify Fix Applied:
After patching, retest with same controlled input to confirm command injection is no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Commands containing shell metacharacters (;, &, |, $, etc.)
- Commands outside expected allowlist
Network Indicators:
- Unexpected outbound connections from Cursor processes
- Traffic to known malicious IPs or domains
SIEM Query:
source="cursor" AND (command="*;*" OR command="*&*" OR command="*|*" OR command="*$(*")