CVE-2016-7237 Denial of service in n/a

Medium 6.5 Published 10 Nov 2016 Updated 6 Aug 2024

Remote authenticated users can cause a system hang in Windows LSASS via a crafted request, requiring OS patches.

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-2016-7237?

CVE-2016-7237 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 10 Nov 2016. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Local Security Authority Subsystem Service (LSASS) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allows remote authenticated users to cause a denial of service (system hang) via a crafted request, aka "Local Security Authority Subsystem Service Denial of Service Vulnerability."

Weakness: CWE-284

Which versions are affected by CVE-2016-7237?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2016-7237?

No fix has been published for CVE-2016-7237 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-2016-7237 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-7237 exists.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-96wx-g729-q36v.