Description
An elevation of privilege vulnerability exists in the Local Security Authority Subsystem Service (LSASS) when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause an elevation of privilege on the target system's LSASS service.
The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests.
Published: 2020-08-17
Score: 7.8 High
EPSS: 6.8% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-12383 An elevation of privilege vulnerability exists in the Local Security Authority Subsystem Service (LSASS) when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause an elevation of privilege on the target system's LSASS service. The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests.
History

Mon, 23 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Description An elevation of privilege vulnerability exists in the Local Security Authority Subsystem Service (LSASS) when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause an elevation of privilege on the target system's LSASS service. The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests. An elevation of privilege vulnerability exists in the Local Security Authority Subsystem Service (LSASS) when an authenticated attacker sends a specially crafted authentication request. A remote attacker who successfully exploited this vulnerability could cause an elevation of privilege on the target system's LSASS service. The security update addresses the vulnerability by changing the way that LSASS handles specially crafted authentication requests.

Subscriptions

Microsoft Windows 10 Windows 10 1507 Windows 10 1607 Windows 10 1803 Windows 10 1809 Windows 10 1909 Windows 7 Windows 8.1 Windows Rt 8.1 Windows Server 1903 Windows Server 1909 Windows Server 2004 Windows Server 2008 Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 Windows Server 2019
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2024-08-04T06:39:10.566Z

Reserved: 2019-11-04T00:00:00.000Z

Link: CVE-2020-1509

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-08-17T19:15:17.007

Modified: 2026-02-23T18:25:24.937

Link: CVE-2020-1509

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses