CVE-2020-1520 Windows Font Driver Host Remote Code Execution Vulnerability

High 7.8 Published Updated

An attacker can execute arbitrary code on a victim system by exploiting a memory handling flaw in the Windows Font Driver Host.

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-2020-1520?

CVE-2020-1520 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 17 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A remote code execution vulnerability exists when the Windows Font Driver Host improperly handles memory. An attacker who successfully exploited the vulnerability would gain execution on a victim system. The security update addresses the vulnerability by correcting how the Windows Font Driver Host handles memory.

Which versions are affected by CVE-2020-1520?

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-2020-1520?

No fix has been published for CVE-2020-1520 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-2020-1520 being exploited?

There is no known exploitation of CVE-2020-1520 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-qgxw-h3gp-6wg8.

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