CVE-2022-21927 HEVC Video Extensions Remote Code Execution Vulnerability

High 7.8 Published 9 Feb 2022 Updated 2 Jan 2025

An attacker can execute arbitrary code by exploiting a memory corruption vulnerability in the HEVC Video Extensions component.

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-2022-21927?

CVE-2022-21927 is a high-severity memory corruption vulnerability in Microsoft HEVC Video Extension, published on 9 Feb 2022. 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

HEVC Video Extensions Remote Code Execution Vulnerability

Which versions are affected by CVE-2022-21927?

It affects 1 product.

Products include Microsoft Hevc Video Extensions.

How do I fix CVE-2022-21927?

No fix has been published for CVE-2022-21927 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-2022-21927 being exploited?

There is no known exploitation of CVE-2022-21927 in the wild and no public exploit code.

Sources

Also known as GHSA-4x25-3w8p-m6r3.