Security Feature Bypass in Windows Mark of the Web by Microsoft

CVE-2025-24061

What is CVE-2025-24061?

CVE-2025-24061 is a security vulnerability found in Microsoft’s Windows Mark of the Web (MOTW) feature, which is designed to provide a protective mechanism for files downloaded from the internet. The flaw enables unauthorized attackers to bypass these security protections locally, potentially exposing systems to increased risk. Its existence may lead to serious consequences for organizations that rely on this feature for safeguarding their software and data, especially in environments where security is paramount.

Technical Details

This vulnerability arises from a failure in the security protection mechanism of Windows MOTW. An attacker who can access the system locally may exploit this weakness without requiring any authentication or elevated privileges. Consequently, the absence of this security barrier can facilitate unauthorized activities, making it crucial for the issue to be addressed promptly.

Potential Impact of CVE-2025-24061

1. Unauthorized Access: The vulnerability allows attackers to bypass essential security features, leading to unauthorized access to sensitive files or system functionalities that should otherwise be protected.

2. Increased Risk of Malware Spread: Without the safeguards offered by MOTW, systems could become prone to infections from malicious files, increasing the likelihood of malware spreading within an organization’s network.

3. Compromise of Data Integrity: The ability to bypass security measures could result in data being altered or tampered with, threatening the integrity of critical information stored on affected systems.

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