CVE-2025-53809
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-09

Last updated on: 2025-09-22

Assigner: Microsoft Corporation

Description
Improper input validation in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
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Meta Information
Published
2025-09-09
Last Modified
2025-09-22
Generated
2026-06-16
AI Q&A
2025-09-09
EPSS Evaluated
2026-06-14
NVD
CVE-2025-53809
EUVD
EUVD-2025-27321
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
microsoft windows_11_24h2 to 10.0.26100.6508 (exc)
microsoft windows_server_2025 to 10.0.26100.6508 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
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Executive Summary

This vulnerability is caused by improper input validation in the Windows Local Security Authority Subsystem Service (LSASS). It allows an authorized attacker to cause a denial of service over a network.

Impact Analysis

An attacker with authorized access can exploit this vulnerability to cause a denial of service, potentially disrupting system availability and preventing legitimate users from accessing services.

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