CVE-2022-37977 Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Medium 6.5 Published Updated

An attacker can cause a denial of service in the Local Security Authority Subsystem Service on affected Windows operating systems.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-37977?

CVE-2022-37977 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 11 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability

Which versions are affected by CVE-2022-37977?

It affects 10 products.

Products include Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008 and 4 more.

How do I fix CVE-2022-37977?

No fix has been published for CVE-2022-37977 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-37977 being exploited?

There is no known exploitation of CVE-2022-37977 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-hc7f-5g7r-j42x.

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