CVE-2026-44812
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Integer Overflow in Windows Win32K - GRFX

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-44812
EUVD
EUVD-2026-35759
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
microsoft windows_win32k_grfx *
microsoft windows_win32k *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
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Executive Summary

This vulnerability is an integer overflow or wraparound issue in the Windows Win32K graphics component (GRFX). It allows an unauthorized attacker to execute code locally on the affected system.

Impact Analysis

The vulnerability can lead to local code execution by an unauthorized attacker, which means the attacker could run malicious code on your system. This can result in full compromise of confidentiality, integrity, and availability of the affected system.

Mitigation Strategies

To mitigate this vulnerability, apply the security updates provided by Microsoft as soon as possible to patch the integer overflow issue in Windows Win32K - GRFX.

Additionally, limit local user access and avoid running untrusted applications to reduce the risk of exploitation.

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