CVE-2020-16898 Windows TCP/IP Remote Code Execution Vulnerability

High 8.8 Published Updated

Remote attackers can execute arbitrary code on Windows systems by sending specially crafted ICMPv6 Router Advertisement packets.

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-2020-16898?

CVE-2020-16898 is a high-severity memory corruption 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>A remote code execution vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could gain the ability to execute code on the target server or client.</p> <p>To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer.</p> <p>The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.</p>

Which versions are affected by CVE-2020-16898?

It affects 3 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2020-16898?

No fix has been published for CVE-2020-16898 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-16898 being exploited?

There is no known exploitation of CVE-2020-16898 in the wild and no public exploit code.

Public exploit code: 15 proofs of concept on GitHub.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-8vrv-2fm5-wpvr.

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