CVE-2026-50498
High
Description
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Windows
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-125Out-of-bounds readCWE-191CWE-191
How to fix
Update
- microsoft windows_10_160710.0.14393.9339 or later
- microsoft windows_10_180910.0.17763.9020 or later
- microsoft windows_10_21h210.0.19044.7548 or later
- microsoft windows_10_22h210.0.19045.7548 or later
- microsoft windows_11_24h210.0.26100.8875 or later
- microsoft windows_11_25h210.0.26200.8875 or later
- microsoft windows_11_26h110.0.28000.2525 or later
- microsoft windows_server_201610.0.14393.9339 or later
- microsoft windows_server_201910.0.17763.9020 or later
- microsoft windows_server_202210.0.20348.5386 or later
- microsoft windows_server_202510.0.26100.33158 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1607 | v < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft windows_10_1809 | v < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft windows_10_21h2 | v < 10.0.19044.7548 | 10.0.19044.7548 |
| microsoft windows_10_22h2 | v < 10.0.19045.7548 | 10.0.19045.7548 |
| microsoft windows_11_24h2 | v < 10.0.26100.8875 | 10.0.26100.8875 |
| microsoft windows_11_25h2 | v < 10.0.26200.8875 | 10.0.26200.8875 |
| microsoft windows_11_26h1 | v < 10.0.28000.2525 | 10.0.28000.2525 |
| microsoft windows_server_2012 | No range specified, r2 | — |
| microsoft windows_server_2016 | v < 10.0.14393.9339 | 10.0.14393.9339 |
| microsoft windows_server_2019 | v < 10.0.17763.9020 | 10.0.17763.9020 |
| microsoft windows_server_2022 | v < 10.0.20348.5386 | 10.0.20348.5386 |
| microsoft windows_server_2025 | v < 10.0.26100.33158 | 10.0.26100.33158 |
Check your version
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