VDB
CVE-2026-34347
CVE-2026-34347
PUBLISHED
CVSS 7 HIGH
Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
EPSS 0.04% · 14.3th percentile
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.04%
14.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 10.0.25398.0, 10.0.25398.0, 10.0.25398.0 |
| Microsoft | Windows Server 2016 | 10.0.14393.0, 10.0.14393.0, 10.0.14393.0 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0, 6.3.9600.0, 6.3.9600.0 |
| microsoft | windows_server_2022 | 10.0.20348.0, 10.0.20348.0, 10.0.20348.0 |
| microsoft | windows_10_1809 | 10.0.17763.0, 10.0.17763.0, 10.0.17763.0 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0, 10.0.17763.0, 10.0.17763.0 |
| Microsoft | Windows Server 2019 | 10.0.17763.0, 10.0.17763.0, 10.0.17763.0 |
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0, 10.0.17763.0, 10.0.17763.0 |
| Microsoft | Windows 11 Version 25H2 | 10.0.26200.0, 10.0.26200.0, 10.0.26200.0 |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0, 6.3.9600.0, 6.3.9600.0 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19044.0, 10.0.19044.0, 10.0.19044.0 |
| microsoft | windows_server_2016 | 10.0.14393.0, 10.0.14393.0, 10.0.14393.0 |
| Microsoft | Windows 11 version 26H1 | 10.0.28000.0, 10.0.28000.0, 10.0.28000.0 |
| microsoft | windows_11_25H2 | 10.0.26200.0, 10.0.26200.0, 10.0.26200.0 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0, 6.2.9200.0, 6.2.9200.0 |
| microsoft | windows_server_2025 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
| Microsoft | Windows Server 2012 | 6.2.9200.0, 6.2.9200.0, 6.2.9200.0 |
| microsoft | windows_10_1607 | 10.0.14393.0, 10.0.14393.0, 10.0.14393.0 |
| Microsoft | Windows 11 Version 23H2 | 10.0.22631.0, 10.0.22631.0, 10.0.22631.0 |
| Microsoft | Windows 11 Version 24H2 | 10.0.26100.0, 10.0.26100.0, 10.0.26100.0 |
…and 16 more
Timeline
- May 12, 2026 CVE Published
- May 12, 2026 PoC Published
- May 12, 2026 PoC Published
- May 13, 2026 PoC Published
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40407 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35418 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34345 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32209 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35422 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34330 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32170 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34350 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40401 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35415 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40415 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40397 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34333 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40406 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34339 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34334 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41088 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35419 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34332 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34351 advisory
…and 53 more