CVE-2021-42292 Microsoft Excel Security Feature Bypass

Exploited in the wild High 7.8 Published Updated

Attackers can bypass security features in Microsoft Excel, potentially exposing users to further threats.

Exploited in the wild
Since 17 Nov 2021
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-2021-42292?

CVE-2021-42292 is a high-severity vulnerability in Microsoft 365 Apps, published on 10 Nov 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 Excel Security Feature Bypass Vulnerability

Which versions are affected by CVE-2021-42292?

It affects 6 products.

Products include Microsoft 365 Apps, Microsoft Excel, Microsoft Office, Microsoft Office 2016, Microsoft Office 2019, Microsoft Office 2021.

How do I fix CVE-2021-42292?

No fix has been published for CVE-2021-42292 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 1 Dec 2021.

Is CVE-2021-42292 being exploited?

Yes. Attackers have exploited CVE-2021-42292 in the wild since at least 17 Nov 2021.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft 365 Apps vulnerabilities

Sources

Also known as GHSA-jp63-fcqh-36rc.

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