CVE-2021-38660 Microsoft Office Graphics Remote Code Execution Vulnerability

High 7.8 Published Updated

Attackers can execute arbitrary code via crafted graphics in Microsoft Office, requiring users to open malicious files.

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-2021-38660?

CVE-2021-38660 is a high-severity memory corruption vulnerability in Microsoft Excel, 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 Office Graphics Remote Code Execution Vulnerability

Which versions are affected by CVE-2021-38660?

It affects 1 product.

Products include Microsoft Excel.

How do I fix CVE-2021-38660?

No fix has been published for CVE-2021-38660 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-2021-38660 being exploited?

There is no known exploitation of CVE-2021-38660 in the wild and no public exploit code.

All Microsoft Excel vulnerabilities

Sources

Also known as GHSA-7g65-rwp5-vwpp.

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