CVE-2026-0390
Medium
Description
Reliance on untrusted inputs in a security decision in Windows Boot Loader allows an authorized attacker to bypass a security feature locally.
SeverityMedium
CVSS6.7
Exploit probability—
Product
Microsoft Windows
PublishedApr 14, 2026
First seenApr 14, 2026
Weakness typeCWE-807CWE-807
How to fix
Update
- microsoft windows_10_160710.0.14393.9060 or later
- microsoft windows_10_180910.0.17763.8644 or later
- microsoft windows_10_21h210.0.19044.7184 or later
- microsoft windows_10_22h210.0.19045.7184 or later
- microsoft windows_server_201610.0.14393.9060 or later
- microsoft windows_server_201910.0.17763.8644 or later
- microsoft windows_server_202210.0.20348.5020 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1607 | v < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft windows_10_1809 | v < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft windows_10_21h2 | v < 10.0.19044.7184 | 10.0.19044.7184 |
| microsoft windows_10_22h2 | v < 10.0.19045.7184 | 10.0.19045.7184 |
| microsoft windows_server_2016 | v < 10.0.14393.9060 | 10.0.14393.9060 |
| microsoft windows_server_2019 | v < 10.0.17763.8644 | 10.0.17763.8644 |
| microsoft windows_server_2022 | v < 10.0.20348.5020 | 10.0.20348.5020 |
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