CVE-2026-44808 Windows DWM Core Library Elevation of Privilege Vulnerability
A heap-based buffer overflow in the Windows DWM Core Library 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-2026-44808?
CVE-2026-44808 is a high-severity memory corruption vulnerability in Microsoft Windows 11 26h1, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Which versions are affected by CVE-2026-44808?
It affects 1 product.
Products include Microsoft Windows 11 26h1.
How do I fix CVE-2026-44808?
No fix has been published for CVE-2026-44808 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-2026-44808 being exploited?
There is no known exploitation of CVE-2026-44808 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 11 26h1
- CVE-2026-85921 Windows Secure Kernel Mode Elevation of Privilege Vulnerability
- CVE-2026-83939 Windows Secure Kernel Mode Elevation of Privilege Vulnerability
- CVE-2026-105005 Windows Schannel Remote Code Execution Vulnerability
- CVE-2026-85850 Windows Kernel Elevation of Privilege Vulnerability
- CVE-2026-97803 Windows Kernel Elevation of Privilege Vulnerability
Sources
Also known as GHSA-83gr-6443-3q7q.