high7.0
CVE-2026-50359
Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.
Impact
Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1607 | before 10.0.14393.9339 |
| Microsoft | Windows 10 1809 | before 10.0.17763.9020 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.7548 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.7548 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.8875 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.8875 |
| Microsoft | Windows 11 26h1 | before 10.0.28000.2269 before 10.0.28000.2525 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.9339 |
| Microsoft | Windows Server 2019 | before 10.0.17763.9020 |
| Microsoft | Windows Server 2022 | before 10.0.20348.5386 |
| Microsoft | Windows Server 2025 | before 10.0.26100.33158 |
| Microsoft | Windows 10 Version 1607 | from 10.0.14393.0 before 10.0.14393.9339 |
| Microsoft | Windows 10 Version 1809 | from 10.0.17763.0 before 10.0.17763.9020 |
| Microsoft | Windows 10 Version 21H2 | from 10.0.19044.0 before 10.0.19044.7548 |
| Microsoft | Windows 10 Version 22H2 | from 10.0.19045.0 before 10.0.19045.7548 |
| Microsoft | Windows 11 Version 24H2 | from 10.0.26100.0 before 10.0.26100.8875 |
| Microsoft | Windows 11 Version 25H2 | from 10.0.26200.0 before 10.0.26200.8875 |
| Microsoft | Windows 11 Version 26H1 | from 10.0.28000.0 before 10.0.28000.2525 |
| Microsoft | Windows Server 2012 | from 6.2.9200.0 before 6.2.9200.26226 |
| Microsoft | Windows Server 2012 (Server Core Installation) | from 6.2.9200.0 before 6.2.9200.26226 |
| Microsoft | Windows Server 2012 R2 | from 6.3.9600.0 before 6.3.9600.23291 |
| Microsoft | Windows Server 2012 R2 (Server Core Installation) | from 6.3.9600.0 before 6.3.9600.23291 |
| Microsoft | Windows Server 2016 | from 10.0.14393.0 before 10.0.14393.9339 |
| Microsoft | Windows Server 2019 (Server Core Installation) | from 10.0.17763.0 before 10.0.17763.9020 |
| Microsoft | Windows Server 2016 (Server Core Installation) | from 10.0.14393.0 before 10.0.14393.9339 |
| Microsoft | Windows Server 2025 | from 10.0.26100.0 before 10.0.26100.33158 |
| Microsoft | Windows Server 2019 | from 10.0.17763.0 before 10.0.17763.9020 |
| Microsoft | Windows Server 2022 | from 10.0.20348.0 before 10.0.20348.5386 |