CVE-2026-21249
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing locally.
| Software | From | Fixed in |
|---|---|---|
| microsoft / windows_10_1607 | - | 10.0.14393.8868 |
| microsoft / windows_10_1809 | - | 10.0.17763.8389 |
| microsoft / windows_10_21h2 | - | 10.0.19044.6937 |
| microsoft / windows_10_22h2 | - | 10.0.19045.6937 |
| microsoft / windows_11_23h2 | - | 10.0.22631.6649 |
| microsoft / windows_11_24h2 | - | 10.0.26100.7781 |
| microsoft / windows_11_25h2 | - | 10.0.26200.7781 |
| microsoft / windows_server_2012 | r2 | r2.x |
| microsoft / windows_server_2016 | - | 10.0.14393.8868 |
| microsoft / windows_server_2019 | - | 10.0.17763.8389 |
| microsoft / windows_server_2022 | - | 10.0.20348.4711 |
| microsoft / windows_server_2022_23h2 | - | 10.0.25398.2149 |
| microsoft / windows_server_2025 | - | 10.0.26100.32313 |
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