CVE-2025-32706: Windows 10 Privilege Escalation Vulnerability

CVE-2025-32706 is a privilege escalation vulnerability in Windows 10 1507 affecting the Common Log File System Driver. Improper input validation enables local attackers to gain elevated privileges. This article covers technical details, affected versions, impact assessment, and available mitigation strategies.

CVE-2025-32706 Overview

Improper input validation in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

Critical Impact
This vulnerability allows local privilege escalation, leading to potential full system compromise by an unauthorized actor.

Affected Products

Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1809

Discovery Timeline

Not Available - Vulnerability discovered by Not Available
Not Available - Responsible disclosure to Microsoft
Not Available - CVE CVE-2025-32706 assigned
Not Available - Microsoft releases security patch
2025-05-13 - CVE CVE-2025-32706 published to NVD
2025-10-27 - Last updated in NVD database

Technical Details for CVE-2025-32706

Vulnerability Analysis

This vulnerability stems from improper input validation within the Windows Common Log File System Driver. By crafting malicious input, an attacker can exploit this flaw to execute arbitrary code with elevated privileges.

Root Cause

Inadequate handling and validation of user input in the driver module, which allows attackers to bypass security restrictions.

Attack Vector

This vulnerability is exploitable through a local attack vector, requiring prior access to the system to craft a specific input.

// Example exploitation code (sanitized)
void exploit(){
    char buffer[256];
    // Malicious payload
    strcpy(buffer, "<malicious input>");
    // Code to trigger vulnerability
}

Detection Methods for CVE-2025-32706

Indicators of Compromise

Unusual kernel mode crashes
Unauthorized privilege escalations
Presence of exploit-specific log entries

Detection Strategies

Utilize EDR solutions to monitor for behaviors indicative of privilege escalation or exploit activity, such as anomalous file access patterns or process injections.

Monitoring Recommendations

Continuously monitor for IOCTL requests targeting the Common Log File System Driver and set alerts for any abnormal patterns.

How to Mitigate CVE-2025-32706

Immediate Actions Required

Block access to untrusted applications
Enforce principle of least privilege across system processes
Perform regular system audits for suspicious activities

Patch Information

Refer to Microsoft's official advisory here for the latest patch updates and implementation guidelines.

Workarounds

If patching is not immediately possible, disable affected driver functionalities via Group Policy or direct configuration changes.

bash

# Configuration example
sc config CLFS binPath= ""
sc stop CLFS