7.2
High
CVE-2025-49666 Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network
Description
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows Server 2019 10.0 | 10.0.17763.0 → < 10.0.17763.7558 | 10.0.17763.7558 |
| Windows Server 2019 (Server Core installation) 10.0 | 10.0.17763.0 → < 10.0.17763.7558 | 10.0.17763.7558 |
| Windows Server 2022 10.0 | 10.0.20348.0 → < 10.0.20348.3932 | 10.0.20348.3932 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.4652 | 10.0.26100.4652 |
| Windows Server 2022, 23H2 Edition (Server Core installation) 10.0 | 10.0.25398.0 → < 10.0.25398.1732 | 10.0.25398.1732 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.4652 | 10.0.26100.4652 |
| Windows Server 2016 10.0 | 10.0.14393.0 → < 10.0.14393.8246 | 10.0.14393.8246 |
| Windows Server 2016 (Server Core installation) 10.0 | 10.0.14393.0 → < 10.0.14393.8246 | 10.0.14393.8246 |
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