CVE-2026-44810 Microsoft Cryptographic Services Elevation of Privilege Vulnerability

High 8.4 Published Updated

An attacker can locally elevate privileges due to improper authentication in Windows Cryptographic Services.

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

What is CVE-2026-44810?

CVE-2026-44810 is a high-severity vulnerability in Microsoft Windows 11 23h2, 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

Improper authentication in Windows Cryptographic Services allows an unauthorized attacker to elevate privileges locally.

Weakness: CWE-287

Which versions are affected by CVE-2026-44810?

It affects 6 products.

Products include Microsoft Windows 11 23h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2, Microsoft Windows 11 26h1, Microsoft Windows Server 2022, Microsoft Windows Server 2025.

How do I fix CVE-2026-44810?

No fix has been published for CVE-2026-44810 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-44810 being exploited?

There is no known exploitation of CVE-2026-44810 in the wild and no public exploit code.

All Microsoft Windows 11 23h2 vulnerabilities

Sources

Also known as GHSA-6478-xjph-5qqp.

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