CVE-2026-54132 Windows Kernel Elevation of Privilege Vulnerability

Medium 6.8 Published Updated

An attacker with physical access can exploit a heap-based buffer overflow in the Windows Kernel to elevate privileges.

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-2026-54132?

CVE-2026-54132 is a medium-severity memory corruption vulnerability in Microsoft Windows 10 1607, published on 14 Jul 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 Kernel allows an unauthorized attacker to elevate privileges with a physical attack.

Weakness: CWE-122

Which versions are affected by CVE-2026-54132?

It affects 9 products.

Products include Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 24h2, Microsoft Windows 11 25h2 and 3 more.

How do I fix CVE-2026-54132?

No fix has been published for CVE-2026-54132 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-2026-54132 being exploited?

There is no known exploitation of CVE-2026-54132 in the wild and no public exploit code.

All Microsoft Windows 10 1607 vulnerabilities

Sources

Also known as GHSA-jj2c-679g-wvqh.

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