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CVE-2026-44812

Windows Graphics Component Remote Code Execution Vulnerability

Published: Jun 9, 2026Updated: Jul 23, 2026 Sources: CVE List NVD BDUCWE-190

Description

Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.

In plain language

AI Act now

CVE-2026-44812 is a Windows/Office graphics bug that can let an attacker run code on the computer, and while it needs some user involvement, Windows users should patch now because the fix is available.

Executive summary

CVE-2026-44812 is a local remote-code-execution flaw caused by an integer overflow in the Windows Win32K graphics component (GRFX), allowing arbitrary code execution on affected systems without authentication but requiring user interaction.

If affected, business impact
Full device compromiseMalware installationData theft riskBusiness disruption

What to do now

  1. Check whether you run any of these on your business devices: Windows 10/11 or Windows Server (2012/2012 R2/2016/2019/2022), and also Microsoft Word/Excel/PowerPoint for Android (where applicable).
  2. On Windows devices, compare your Windows version/build to the fixed versions below and plan upgrades for any device that is not yet at (or above) the fixed level.
  3. On Android devices, update Word/Excel/PowerPoint for Android to at least version 16.0.20131.20024.
  4. Apply the available Microsoft update(s) for CVE-2026-44812 using the official Microsoft Update Guide, then reboot if your update process requires it.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

Affected Products

and 54 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

7

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