Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
References
| Link | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34347 | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
14 May 2026, 17:45
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* |
|
| First Time |
Microsoft windows 11 24h2
Microsoft windows 10 22h2 Microsoft windows Server 2019 Microsoft windows 10 21h2 Microsoft windows Server 2012 Microsoft windows 10 1809 Microsoft windows Server 2016 Microsoft windows 10 1607 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows Server 2025 Microsoft windows 11 23h2 Microsoft Microsoft windows Server 2022 23h2 Microsoft windows Server 2022 |
|
| References | () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34347 - Vendor Advisory |
12 May 2026, 18:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-12 18:17
Updated : 2026-05-14 17:45
NVD link : CVE-2026-34347
Mitre link : CVE-2026-34347
CVE.ORG link : CVE-2026-34347
JSON object : View
Products Affected
microsoft
- windows_10_22h2
- windows_11_24h2
- windows_11_26h1
- windows_server_2019
- windows_server_2025
- windows_11_23h2
- windows_10_1809
- windows_10_21h2
- windows_server_2012
- windows_server_2016
- windows_11_25h2
- windows_server_2022
- windows_server_2022_23h2
- windows_10_1607
CWE
CWE-416
Use After Free