CVE-2025-26652
📋 TL;DR
This vulnerability allows unauthorized attackers to cause denial of service in Windows Standards-Based Storage Management Service by consuming system resources. It affects Windows systems with this service enabled, potentially disrupting storage management functionality across networks.
💻 Affected Systems
- Windows Standards-Based Storage Management Service
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of storage management services, affecting file access, backups, and storage operations across enterprise networks.
Likely Case
Temporary service degradation or unavailability of storage management functions until system resources recover.
If Mitigated
Limited impact with proper network segmentation and resource monitoring in place.
🎯 Exploit Status
CWE-400 vulnerabilities typically involve simple resource exhaustion attacks that don't require authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update for specific KB number
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26652
Restart Required: Yes
Instructions:
1. Apply latest Windows security updates from Microsoft
2. Restart affected systems
3. Verify service functionality post-patch
🔧 Temporary Workarounds
Network Segmentation
windowsRestrict network access to Windows Standards-Based Storage Management Service
Use Windows Firewall: netsh advfirewall firewall add rule name="Block SMB Storage Mgmt" dir=in action=block protocol=TCP localport=3260,445
Use Group Policy to restrict service access
Service Disablement
windowsDisable the vulnerable service if not required
sc config "WinSMS" start= disabled
sc stop "WinSMS"
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the storage management service
- Monitor system resource usage and set alerts for abnormal consumption patterns
🔍 How to Verify
Check if Vulnerable:
Check if Windows Standards-Based Storage Management Service is running and accessible: sc query "WinSMS"Check Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify patch installation via: wmic qfe list | findstr /i "CVE-2025-26652" and confirm service is still functional📡 Detection & Monitoring
Log Indicators:
- Event ID 4625 (failed logons) to storage service
- High CPU/memory usage by WinSMS process
- Service crash events in System logs
Network Indicators:
- Unusual high-volume connections to storage management ports (typically 3260, 445)
- Traffic patterns indicating resource exhaustion attempts
SIEM Query:
source="windows" (event_id=4625 AND process_name="WinSMS") OR (process_name="WinSMS" AND (cpu_usage>90 OR memory_usage>90))