6.5
Medium
CVE-2025-53809 Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to…
Description
Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.6584 | 10.0.26100.6584 |
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.6584 | 10.0.26100.6584 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.6584 | 10.0.26100.6584 |
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