ExploitPublished 16 Jul 2025

Microsoft Graphics Component Windows 11 Pro (Build 26100+) · Local Elevation of Privileges

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Severity

High

Rated by Threat Radar

Data as of 14 Aug 2025, 01:13 UTC

What to do

AI-suggested

Given the lack of an official patch, European organizations should adopt a multi-layered mitigation approach. First, enforce the principle of least privilege by ensuring users operate with minimal necessary rights and avoid administrative privileges for daily tasks. Implement application whitelisting and restrict execution of unauthorized scripts, including Perl scripts, to reduce the risk of exploit execution. Employ endpoint detection and response (EDR) solutions capable of monitoring anomalous behavior related to privilege escalation attempts, especially those targeting graphics subsystem components. Regularly audit and monitor local user accounts and system logs for signs of suspicious activity. Network segmentation can limit the lateral movement potential if an endpoint is compromised. Additionally, organizations should prepare for rapid deployment of patches once Microsoft releases an official fix. Until then, consider disabling or restricting access to the vulnerable graphics component if feasible, or deploying virtual desktop infrastructure (VDI) solutions that isolate user environments. User education to recognize and report suspicious activity is also critical. Finally, maintain up-to-date backups and incident response plans tailored to privilege escalation scenarios.

Description

Microsoft Graphics Component Windows 11 Pro (Build 26100+) - Local Elevation of Privileges

Impact

For European organizations, the impact of this local privilege escalation vulnerability is substantial. Many enterprises and governmental institutions rely on Windows 11 Pro for their desktop environments, especially in sectors such as finance, healthcare, and public administration. An attacker exploiting this vulnerability could gain administrative control over affected systems, leading to data breaches, disruption of critical services, or lateral movement within corporate networks. This could result in significant operational downtime, financial losses, and reputational damage. Furthermore, since the vulnerability resides in a core graphics component, exploitation could bypass traditional security mechanisms that monitor network traffic or application behavior, making detection more difficult. The absence of a patch increases the urgency for organizations to implement interim mitigations. Additionally, the availability of exploit code in Perl lowers the barrier for attackers, including less sophisticated threat actors, to leverage this vulnerability. European organizations with remote or hybrid work environments are particularly at risk if endpoint security is not tightly controlled, as attackers could exploit compromised user accounts to escalate privileges locally.

Indicators of compromise

Exploit source code

Exploit code for Microsoft Graphics Component Windows 11 Pro (Build 26100+) - Local Elevation of Privileges2,663 characters

**Exploit Title : Microsoft Graphics Component Windows 11 Pro (Build 26100+) - Local Elevation of Privileges
**Author:** nu11secur1ty
**Date:** 07/11/2025

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## Overview

This repository contains a PowerShell script to **validate whether a
Windows 11 system is vulnerable to CVE-2025-49744**—a critical local
privilege escalation vulnerability involving the `gdi32.dll` and
`win32kfull.sys` system components.

The script performs the following checks:

- Windows build number validation
- Install…

References

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