CVE-2025-27728 Windows Kernel-Mode Driver Elevation of Privilege Vulnerability

High 7.8 Published Updated

An out-of-bounds read in Windows Kernel-Mode Drivers allows local attackers to elevate privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-27728?

CVE-2025-27728 is a high-severity memory corruption vulnerability in Microsoft Windows 11 24h2, published on 8 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

Weakness: CWE-125

Which versions are affected by CVE-2025-27728?

It affects 2 products.

Products include Microsoft Windows 11 24h2, Microsoft Windows Server 2025.

How do I fix CVE-2025-27728?

No fix has been published for CVE-2025-27728 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-27728 being exploited?

There is no known exploitation of CVE-2025-27728 in the wild and no public exploit code.

All Microsoft Windows 11 24h2 vulnerabilities

Sources

Also known as GHSA-3w3r-78f2-2x8v.

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