vulnerability
Microsoft Windows: CVE-2025-59259: Windows Local Session Manager (LSM) Denial of Service Vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:N/I:N/A:C) | Oct 14, 2025 | Oct 14, 2025 | May 8, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
Oct 14, 2025
Added
Oct 14, 2025
Modified
May 8, 2026
Description
Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.
Solutions
microsoft-windows-windows_10-1507-kb5066837microsoft-windows-windows_10-1607-kb5066836microsoft-windows-windows_10-1809-kb5066586microsoft-windows-windows_10-21h2-kb5066791microsoft-windows-windows_10-22h2-kb5066791microsoft-windows-windows_11-22h2-kb5066793microsoft-windows-windows_11-23h2-kb5066793microsoft-windows-windows_11-24h2-kb5066835microsoft-windows-windows_11-25h2-kb5066835microsoft-windows-windows_server_2012-kb5066875microsoft-windows-windows_server_2012_r2-kb5066873microsoft-windows-windows_server_2016-1607-kb5066836microsoft-windows-windows_server_2019-1809-kb5066586microsoft-windows-windows_server_2022-21h2-kb5066782microsoft-windows-windows_server_2022-22h2-kb5066782microsoft-windows-windows_server_2022-23h2-kb5066780microsoft-windows-windows_server_2025-24h2-kb5066835
References
Rapid7 Labs
2026 Global Threat Landscape Report
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