7.5
High
CVE-2026-72989 Use of uninitialized resource in Windows Failover Cluster allows an unauthorized attacker to disclose information over a…
Description
Use of uninitialized resource in Windows Failover Cluster allows an unauthorized attacker to disclose information over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 Version 1809 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.9245 | 10.0.17763.9245 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.5622 | 10.0.20348.5622 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.33438 | 10.0.26100.33438 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.33438 | 10.0.26100.33438 |
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