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
Description
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_local_security_authority_subsystem_service | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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]
How can this vulnerability impact me? :
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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