CVE-2021-38644 Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

High 7.8 Published Updated

An attacker can execute arbitrary code by exploiting a memory corruption flaw in the Microsoft MPEG-2 Video Extension.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-38644?

CVE-2021-38644 is a high-severity memory corruption vulnerability in Microsoft MPEG-2 Video Extension, published on 15 Sep 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-38644?

It affects 1 product.

Products include Microsoft Mpeg-2 Video Extension.

How do I fix CVE-2021-38644?

No fix has been published for CVE-2021-38644 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-2021-38644 being exploited?

There is no known exploitation of CVE-2021-38644 in the wild and no public exploit code.

Sources

Also known as GHSA-55x8-6f5x-9xx6.

Is CVE-2021-38644 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free