🛡️ AI Security Tool Module
CVE-2026-20805: Desktop Window Manager (dwm.exe) Memory Disclosure

Official Security Audit Module for AI Security Tool Ecosystem

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🧠 Conceptual Overview

This module provides diagnostic tools for evaluating CVE-2026-20805, an information disclosure vulnerability in the Desktop Window Manager (dwm.exe) component of Microsoft Windows (classified as CWE-200).

An authenticated local attacker with low privileges can exploit this flaw to reveal remote ALPC (Asynchronous Local Procedure Call) port section addresses from DWM process memory. The leaked user-mode memory addresses allow attackers to bypass modern exploit mitigations (such as ASLR) and chain this vulnerability into a broader privilege escalation attack vector.

🎯 Core Impact Philosophy

"Information disclosure is the primary key to bypassing modern OS mitigations."
While a memory leak in DWM does not directly yield arbitrary code execution on its own, it drastically reduces system resilience by giving attackers precise memory targets for kernel or service exploitation.

📊 Vulnerability Specifications

Specification	Assigned Value	Notes
CVE Identifier	CVE-2026-20805	Information Disclosure Vulnerability
Severity Rating	Medium (CVSS v3.1: 5.5)	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vulnerability Type	CWE-200	Exposure of Sensitive Information to an Unauthorized Actor
Affected Component	Desktop Window Manager (dwm.exe)	Windows Compositing & Graphics Subsystem
Attack Vector	Local	Requires execution from an authenticated user account
Privileges Required	Low Privileges	Standard unprivileged user access

🕸 Attack Scenario & Architecture

graph TD
    A[Authenticated Low-Priv User] -->|Initiate ALPC Calls| B[Desktop Window Manager dwm.exe]
    B -->|Trigger Unchecked Memory Read| C[Extract Remote ALPC Section Addresses]
    C -->|User-Mode Memory Leak| D[Bypass ASLR / Defense Mechanisms]
    D -->|Chain with Local Privilege Escalation| E[System Privilege Compromise]
  

📂 Repository Structure

CVE-2026-20805-POC/
├── poc/
│   └── dumper.py            # Diagnostic script to capture & analyze memory leaks
├── docs/
│   └── technical_analysis.md # Technical breakdown and internal details
├── scripts/
│   └── setup_env.ps1        # Environment configuration script
├── .gitignore
└── README.md

🛡 Mitigation Checklist

• 🟢 Apply Vendor Patches: Install the latest cumulative security updates provided by Microsoft via Windows Update.
• 🟢 Process Execution Rules: Restrict untrusted script execution in user-writable directories via AppLocker or Windows Defender Application Control (WDAC).

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💻 How to Run this Module

⚠️ IMPORTANT: This module is built specifically for safe execution and diagnostics within the AI Security Tool ecosystem. Always use verified modules sourced from official repositories.

1️⃣ Install AI Security Tool

To execute the monitoring and diagnostic scripts, ensure the AI Security Tool core engine is installed: