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Microsoft Patches LSASS Elevation of Privilege Vulnerabilities

Updated 37m agoFirst seen May 25, 20262 sources

Microsoft released security updates for two Local Security Authority Subsystem Service (LSASS) elevation of privilege flaws, tracked as CVE-2022-21884 and CVE-2022-30166. Both advisories identify weaknesses in the Windows component responsible for enforcing security policy and handling authentication, creating a path for attackers to gain higher privileges on affected systems.

The vulnerabilities were published through Microsoft's Security Update Guide and security advisory portal, indicating that organizations running impacted Windows environments should prioritize the relevant patches. Because LSASS operates with highly sensitive privileges, successful exploitation could allow an attacker with existing access to elevate permissions and strengthen control over a compromised host.

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Microsoft Patches LSASS Elevation of Privilege Vulnerabilities
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EVENT TIMELINE

How this story unfolded

2 events from the most recent confirmed update back to the earliest known activity.

2 EVENTS
Jun 14, 20224y ago

Microsoft publishes advisory for CVE-2022-30166

Microsoft released security guidance for CVE-2022-30166, another Local Security Authority Subsystem Service elevation of privilege vulnerability. The update appeared in Microsoft's Security Update Guide.

Jan 11, 20224y ago

Microsoft publishes advisory for CVE-2022-21884

Microsoft released security guidance for CVE-2022-21884, a Local Security Authority Subsystem Service elevation of privilege vulnerability. The advisory was published through the Microsoft Security Response Center portal.

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