CVE-2026-32221 Windows Graphics Component Remote Code Execution Vulnerability

High 8.4 Published Updated

An attacker can execute arbitrary code locally via a heap-based buffer overflow in the Windows Graphics Component.

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-2026-32221?

CVE-2026-32221 is a high-severity memory corruption vulnerability in Microsoft Windows 11 24h2, published on 14 Apr 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 Microsoft Graphics Component allows an unauthorized attacker to execute code locally.

Weakness: CWE-122

Which versions are affected by CVE-2026-32221?

It affects 4 products.

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

How do I fix CVE-2026-32221?

No fix has been published for CVE-2026-32221 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-2026-32221 being exploited?

There is no known exploitation of CVE-2026-32221 in the wild and no public exploit code.

All Microsoft Windows 11 24h2 vulnerabilities

Sources

Also known as GHSA-qm5p-p76j-g82x.

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