CVE-2023-33137 Microsoft Excel Remote Code Execution Vulnerability

High 7.8 Published Updated

An attacker can execute arbitrary code by exploiting a double-free vulnerability in Microsoft Excel.

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-2023-33137?

CVE-2023-33137 is a high-severity memory corruption vulnerability in Microsoft Office, published on 13 Jun 2023. 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 Excel Remote Code Execution Vulnerability

Weakness: CWE-415

Which versions are affected by CVE-2023-33137?

It affects 2 products.

Products include Microsoft Office, Microsoft Office Online Server.

How do I fix CVE-2023-33137?

No fix has been published for CVE-2023-33137 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-2023-33137 being exploited?

There is no known exploitation of CVE-2023-33137 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

All Microsoft Office vulnerabilities

Sources

Also known as GHSA-vx98-w6gr-g2gv.

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