CVE-2025-42701
📋 TL;DR
A race condition vulnerability in CrowdStrike Falcon sensor for Windows allows attackers with existing code execution on a host to delete arbitrary files. Only Windows versions before 7.24 are affected; Mac, Linux, and Legacy Systems sensors are not impacted. This requires prior access to execute malicious code on the target system.
💻 Affected Systems
- CrowdStrike Falcon sensor for Windows
⚠️ 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
Critical system files could be deleted, causing system instability, data loss, or denial of service on affected Windows endpoints.
Likely Case
Attackers with established foothold could delete specific files to cover tracks, disrupt operations, or remove security controls.
If Mitigated
With proper patch management and endpoint security controls, the risk is minimal as attackers would need prior access that should be prevented.
🎯 Exploit Status
Requires race condition exploitation and prior code execution capability. No known exploitation in the wild as per vendor advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Falcon sensor for Windows version 7.24 and above
Vendor Advisory: https://www.crowdstrike.com/en-us/security-advisories/issues-affecting-crowdstrike-falcon-sensor-for-windows/
Restart Required: No
Instructions:
1. Log into CrowdStrike Falcon console 2. Navigate to Sensor Updates 3. Deploy Falcon sensor version 7.24 or higher to all Windows endpoints 4. Verify successful deployment across environment
🔧 Temporary Workarounds
No direct workaround available
allThis is a code-level vulnerability requiring patching. Ensure proper endpoint security controls to prevent initial code execution.
🧯 If You Can't Patch
- Implement strict application control policies to prevent unauthorized code execution
- Enhance monitoring for suspicious file deletion activities on Windows endpoints
🔍 How to Verify
Check if Vulnerable:
Check Falcon sensor version on Windows endpoints: version must be 7.24 or higher to be patched.Check Version:
Check Falcon UI or use: Get-CimInstance -ClassName Win32_Product | Where-Object {$_.Name -like '*Falcon*'} | Select-Object Name, VersionVerify Fix Applied:
Confirm all Windows endpoints show Falcon sensor version 7.24 or higher in CrowdStrike console.📡 Detection & Monitoring
Log Indicators:
- Unexpected file deletion events from Falcon sensor processes
- Race condition exploitation patterns in system logs
Network Indicators:
- No network indicators as this is a local vulnerability
SIEM Query:
EventID=4663 OR EventID=4656 AND ProcessName contains 'Falcon' AND TargetFilename contains critical system paths