CVE-2026-20875
Unknown Unknown - Not Provided
Null Pointer Dereference in Windows LSASS Causes Remote DoS

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
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Meta Information
Published
2026-01-13
Last Modified
2026-01-13
Generated
2026-06-16
AI Q&A
2026-01-14
EPSS Evaluated
2026-06-14
NVD
CVE-2026-20875
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_local_security_authority_subsystem_service *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a null pointer dereference in the Windows Local Security Authority Subsystem Service (LSASS) that allows an unauthorized attacker to cause a denial of service over a network. [1]

Impact Analysis

An attacker can exploit this vulnerability to cause a denial of service, making the affected system unavailable or unresponsive over the network. [1]

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