Windows Win32K - GRFX
CVE-2025-21338 — GDI+ Remote Code Execution Vulnerability
Executive Summary
None
Overview
7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.8
EPSS Score
0.00479
probability of exploitation in the next 30 days
0.37525 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
37 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Office for Android | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office for iOS | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office for Mac | Release Notes (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft Office for Universal | Release Notes (Security Update) |
Important | Remote Code Execution | Maybe |
| Microsoft Office LTSC for Mac 2021 | Release Notes (Security Update) |
Important | Remote Code Execution | Yes |
| Microsoft Office LTSC for Mac 2024 | Release Notes (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 for 32-bit Systems | 5050013 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 for x64-based Systems | 5050013 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 5049993 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1607 for x64-based Systems | 5049993 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 5050008 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 1809 for x64-based Systems | 5050008 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 21H2 for x64-based Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 22H2 for 32-bit Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 22H2 for ARM64-based Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 10 Version 22H2 for x64-based Systems | 5049981 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 22H2 for ARM64-based Systems | 5050021 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 22H2 for x64-based Systems | 5050021 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 23H2 for ARM64-based Systems | 5050021 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 23H2 for x64-based Systems | 5050021 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 24H2 for ARM64-based Systems | 5050009 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows 11 Version 24H2 for x64-based Systems | 5050009 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 5050063 (Monthly Rollup) 5050061 (Security Only) Important Remote Code Execution 5048710 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23070 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5050063 (Monthly Rollup) 5050061 (Security Only) Important Remote Code Execution 5048710 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23070 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 5050063 (Monthly Rollup) 5050061 (Security Only) Important Remote Code Execution 5048710 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23070 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5050063 (Monthly Rollup) 5050061 (Security Only) Important Remote Code Execution 5048710 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23070 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 5050049 (Monthly Rollup) 5050006 (Security Only) Important Remote Code Execution 5048695 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.27520 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5050049 (Monthly Rollup) 5050006 (Security Only) Important Remote Code Execution 5048695 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.27520 Yes None Windows Server 2012 | 5050004 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 (Server Core installation) | 5050004 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 R2 | 5050048 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Windows Server 2012 R2 (Server Core installation) | 5050048 (Monthly Rollup) |
Important | Remote Code Execution | Yes |
| Windows Server 2016 | 5049993 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2016 (Server Core installation) | 5049993 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2019 | 5050008 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2019 (Server Core installation) | 5050008 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2022 | 5049983 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2022 (Server Core installation) | 5049983 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2022, 23H2 Edition (Server Core installation) | 5049984 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2025 | 5050009 (Security Update) |
Important | Remote Code Execution | Yes |
| Windows Server 2025 (Server Core installation) | 5050009 (Security Update) |
Important | Remote Code Execution | Yes |
Patches
11 patches
| Article | Type | Restart |
|---|---|---|
Release Notes |
Security Update | Maybe |
5050013 |
Security Update | Yes |
5049993 |
Security Update | Yes |
5050008 |
Security Update | Yes |
5049981 |
Security Update | Yes |
5050021 |
Security Update | Yes |
5050009 |
Security Update | Yes |
5050004 |
Monthly Rollup | Yes |
5050048 |
Monthly Rollup | Yes |
5049983 |
Security Update | Yes |
5049984 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Li Shuang and willJ with vulnerability research institute
References
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