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Windows NT Local Security Authority (LSA) allows remote...

High severity Unreviewed Published Apr 30, 2022 to the GitHub Advisory Database • Updated Apr 3, 2025

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Windows NT Local Security Authority (LSA) allows remote attackers to cause a denial of service via malformed arguments to the LsaLookupSids function which looks up the SID, aka "Malformed Security Identifier Request."

References

Published by the National Vulnerability Database Dec 16, 1999
Published to the GitHub Advisory Database Apr 30, 2022
Last updated Apr 3, 2025

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(96th percentile)

Weaknesses

Improper Input Validation

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. Learn more on MITRE.

CVE ID

CVE-1999-0995

GHSA ID

GHSA-m7p3-89hq-9rch

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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