CVE-2026-44812: Windows Graphics Component Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 7.8)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
More Likely
Patch Tuesday
2026-Jun
Released
2026-06-09
Last Updated
2026-06-19
EPSS Score
0.52% (percentile: 41.2%)

Description

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

FAQ

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? Successful exploitation of this vulnerability requires the user to view a specially crafted file in the Windows File Explorer Preview Pane or open said file. Are the updates for Microsoft Word, PowerPoint, Excel for Android currently available? Yes. As of June 15, 2026, the security update for Microsoft Word, PowerPoint, Excel for Android are available. Customers running Microsoft Word, PowerPoint, Excel for Android should ensure the update is installed to be protected from this vulnerability. According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Affected Products (33)

Windows

  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows Server 2025 (Server Core installation)
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 11 Version 25H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows Server 2025
  • Windows 11 version 26H1 for x64-based Systems
  • Windows 11 Version 26H1 for ARM64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)

ESU

  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)

Microsoft Office

  • Microsoft Excel for Android
  • Microsoft PowerPoint for Android

Apps

  • Microsoft Word for Android

Security Updates (13)

Acknowledgments

SnowRockLab, <a href="https://mylostchristmas.tistory.com/20">Seung Chan Kim</a>, <a href="https://www.instagram.com/rustemsignore">rustemsignore</a>, <a href="https://x.com/hareh4ru">Kyeongmin Kim (@hareh4ru)</a> with <a href="https://kaist-hacking.github.io/">KAIST Hacking Lab</a>, yhw &amp; txz

Revision History

  • 2026-06-09: Information published.
  • 2026-06-19: Microsoft is announcing the availability of the security updates for Microsoft Word, PowerPoint, Excel for Android. Customers running affected Microsoft Office for Android software should install the update for their product to be protected from this vulnerability.