CVE-2020-16887 Windows Network Connections Service Elevation of Privilege Vulnerability

High 7.8 Published Updated

A local attacker can exploit improper memory handling in the Windows Network Connections Service to execute code with elevated permissions.

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

What is CVE-2020-16887?

CVE-2020-16887 is a high-severity vulnerability in Microsoft Windows 10, published on 16 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

<p>An elevation of privilege vulnerability exists in the way that the Windows Network Connections Service handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.</p> <p>To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.</p> <p>The security update addresses the vulnerability by ensuring the Windows Network Connections Service properly handles objects in memory.</p>

Which versions are affected by CVE-2020-16887?

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-2020-16887?

No fix has been published for CVE-2020-16887 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-16887 being exploited?

There is no known exploitation of CVE-2020-16887 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-x438-ch2w-f6qf.

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