CVE-2025-49684
📋 TL;DR
This vulnerability is a buffer over-read in the Storage Port Driver that allows an authenticated attacker to read beyond allocated memory boundaries, potentially exposing sensitive information from kernel memory. It affects systems running vulnerable versions of Microsoft Windows with the affected driver. Only local attackers with valid credentials can exploit this vulnerability.
💻 Affected Systems
- Microsoft Windows Storage Port Driver
📦 What is this software?
Windows 10 1507 by Microsoft
Windows 10 1507 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
An attacker could read kernel memory containing sensitive information such as passwords, encryption keys, or other system data, potentially enabling further attacks or data exfiltration.
Likely Case
Information disclosure of kernel memory contents, which could reveal system information or memory layout that aids in developing other exploits.
If Mitigated
Limited information disclosure with no direct code execution or system compromise if proper access controls are in place.
🎯 Exploit Status
Requires local authenticated access and knowledge of driver interaction; buffer over-read vulnerabilities typically require specific conditions to trigger.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update for specific patch version
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49684
Restart Required: Yes
Instructions:
1. Apply the latest Windows security updates from Microsoft. 2. Ensure Windows Update is configured to receive security patches. 3. Restart the system after patch installation.
🔧 Temporary Workarounds
Restrict local access
windowsLimit local user accounts and implement strict access controls to reduce attack surface
Disable unnecessary storage drivers
windowsIf Storage Port Driver is not required, consider disabling it through Device Manager
🧯 If You Can't Patch
- Implement strict access controls and limit local user accounts
- Monitor for suspicious local activity and implement application whitelisting
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for applied security patches or use Microsoft's Security Update GuideCheck Version:
wmic os get versionVerify Fix Applied:
Verify the latest Windows security updates are installed and system has been restarted📡 Detection & Monitoring
Log Indicators:
- Unusual driver access patterns in System logs
- Failed driver operations or crashes
Network Indicators:
- No network indicators as this is a local vulnerability
SIEM Query:
EventID=7036 OR EventID=1000 OR EventID=1001 with source containing storage port driver