CVE-2026-20927
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.
| Software | From | Fixed in |
|---|---|---|
| microsoft / windows_10_1607 | - | 10.0.14393.8783 |
| microsoft / windows_10_1809 | - | 10.0.17763.8276 |
| microsoft / windows_10_21h2 | - | 10.0.19044.6809 |
| microsoft / windows_10_22h2 | - | 10.0.19045.6809 |
| microsoft / windows_11_23h2 | - | 10.0.22631.6491 |
| microsoft / windows_11_24h2 | - | 10.0.26100.7623 |
| microsoft / windows_11_25h2 | - | 10.0.26200.7623 |
| microsoft / windows_server_2008 | --sp2 | --sp2.x |
| microsoft / windows_server_2008 | r2-sp1 | r2-sp1.x |
| microsoft / windows_server_2012 | r2 | r2.x |
| microsoft / windows_server_2016 | - | 10.0.14393.8783 |
| microsoft / windows_server_2019 | - | 10.0.17763.8276 |
| microsoft / windows_server_2022 | - | 10.0.20348.4648 |
| microsoft / windows_server_2022_23h2 | - | 10.0.25398.2092 |
| microsoft / windows_server_2025 | - | 10.0.26100.32230 |
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