CVE-2021-34521 Raw Image Extension Remote Code Execution Vulnerability

High 7.8 Published Updated

Attackers can execute arbitrary code via the Windows Raw Image Extension, requiring users to apply Microsoft security patches.

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-2021-34521?

CVE-2021-34521 is a high-severity code injection vulnerability in Microsoft Windows 10, published on 14 Jul 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

Raw Image Extension Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-34521?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016.

How do I fix CVE-2021-34521?

No fix has been published for CVE-2021-34521 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2021-34521 being exploited?

There is no known exploitation of CVE-2021-34521 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-jp7x-46gh-r5cx.

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