CVE-2017-0174 Denial of service in Microsoft Windows

Medium 6.5 Published Updated

Attackers can cause a denial of service in Windows by sending improperly handled NetBIOS packets, affecting system availability.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-0174?

CVE-2017-0174 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 8 Aug 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Windows NetBIOS in 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, 1607, 1703, and Windows Server 2016 allows a denial of service vulnerability when it improperly handles NetBIOS packets, aka "Windows NetBIOS Denial of Service Vulnerability".

Which versions are affected by CVE-2017-0174?

It affects 7 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 1 more.

How do I fix CVE-2017-0174?

No fix has been published for CVE-2017-0174 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-2017-0174 being exploited?

There is no known exploitation of CVE-2017-0174 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-4hpw-pcp4-xm55.

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