Disclosure summary
Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
Source-reported weakness categories
CWE-415
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Microsoft Security Updates (CVRF) · 2026-Apr
Open original source · Updated Apr 14, 2026
Windows Projected File System Elevation of Privilege Vulnerability
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.8
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | Windows Server 2022 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2022 | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2019 | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2019 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 1809 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 1809 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2025 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 25H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 25H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 23H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 23H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2022, 23H2 Edition (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 24H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 24H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2025 | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 26H1 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 version 26H1 for x64-based Systems | (MSRC status code 3) |
Vendor remediation references
- 5082142 · build 10.0.20348.5020 · product IDs 11924, 11923
- Vendor guidance · product IDs 11924, 11923
- 5082142 · product IDs 11924, 11923
- 5082123 · build 10.0.17763.8644 · product IDs 11571, 11572, 11568, 11569
- Vendor guidance · product IDs 11571, 11572, 11568, 11569
- 5082123 · product IDs 11571, 11572, 11568, 11569
- 5082200 · build 10.0.19044.7184 · product IDs 11929, 11930, 11931
- Vendor guidance · product IDs 11929, 11930, 11931
- 5082200 · product IDs 11929, 11930, 11931, 12097, 12098, 12099
- 5082200 · build 10.0.19045.7184 · product IDs 12097, 12098, 12099
- Vendor guidance · product IDs 12097, 12098, 12099
- 5082063 · build 10.0.26100.32690 · product IDs 12437, 12436
- Vendor guidance · product IDs 12437, 12436
- 5082063 · product IDs 12437, 12436
- 5083769 · build 10.0.26200.8246 · product IDs 20438, 20437
- Vendor guidance · product IDs 20438, 20437
- 5083769 · product IDs 20438, 20437, 12390, 12389
- 5082052 · build 10.0.22631.6936 · product IDs 12242, 12243
- Vendor guidance · product IDs 12242, 12243
- 5082052 · product IDs 12242, 12243
- 5082060 · build 10.0.25398.2274 · product IDs 12244
- Vendor guidance · product IDs 12244
- 5082060 · product IDs 12244
- 5083769 · build 10.0.26100.8246 · product IDs 12390, 12389
- Vendor guidance · product IDs 12390, 12389
- 5083768 · build 10.0.28000.1836 · product IDs 20854, 20853
- Vendor guidance · product IDs 20854, 20853
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-04-14T03:00:00-04:00
MODIFIED 2026-04-14T03:00:00-04:00
INGESTED 2026-10-08T12:45:04-04:00