CVE-2026-21251
Use after free in Windows Cluster Client Failover allows an authorized attacker to elevate privileges locally.
| Software | From | Fixed in |
|---|---|---|
| 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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