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Critical MSRC-CVE-2022-21840 1 CVE

Microsoft Office Remote Code Execution Vulnerability

Published Jan 11, 2022 · Updated Jan 13, 2022 · Revision 2

Summary

Impact: Remote Code Execution. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of the vulnerability requires that a user open a specially crafted file.
In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file., In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability.
An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

Are the updates for the Microsoft Office for Mac currently available?
The security update for Microsoft Office 2019 for Mac and Microsoft Office LTSC for Mac 2021 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.

There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?
Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

Security updates
16.0.5266.1000 — https://support.microsoft.com/help/5002113
16.0.5266.1000 — https://support.microsoft.com/kb/5002118
15.0.5415.1000 — https://support.microsoft.com/help/5001995
15.0.5415.1000 — https://support.microsoft.com/kb/5002102
16.0.10382.20004 — https://support.microsoft.com/help/5002109
16.0.10382.20004 — https://support.microsoft.com/kb/5002108
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.57.22011101 — https://go.microsoft.com/fwlink/p/?linkid=831049
16.0.10382.20004 — https://support.microsoft.com/kb/5002107
16.0.14326.20714 — https://support.microsoft.com/help/5002111
16.0.14326.20714 — https://support.microsoft.com/help/5002110
16.0.5266.1000 — https://support.microsoft.com/help/5002114
16.0.5266.1000 — https://support.microsoft.com/help/5002060
16.0.5266.1001 — https://support.microsoft.com/help/5002115
16.0.5266.1000 — https://support.microsoft.com/help/5002052
15.0.5415.1000 — https://support.microsoft.com/help/5002128
15.0.5415.1000 — https://support.microsoft.com/help/5002064
15.0.5415.1001 — https://support.microsoft.com/help/5002124
15.0.5415.1000 — https://support.microsoft.com/help/4462205
15.0.5415.1000 — https://support.microsoft.com/kb/5002122
15.0.5415.1000 — https://support.microsoft.com/help/5002127
15.0.5415.1000 — https://support.microsoft.com/kb/5002129

Vulnerabilities 1

Revision history

  1. #2

    Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

  2. #1

    Information published.

References