CVE-2022-21841: Microsoft Excel Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 7.8)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2022-Jan
Released
2022-01-11
Last Updated
2022-01-13
EPSS Score
2.62% (percentile: 85.7%)

FAQ

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

Affected Products (13)

Microsoft Office

  • Microsoft Office 2019 for 32-bit editions
  • Microsoft Office 2019 for 64-bit editions
  • Microsoft Office 2019 for Mac
  • Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Office LTSC for Mac 2021
  • Microsoft Office LTSC 2021 for 64-bit editions
  • Microsoft Office LTSC 2021 for 32-bit editions
  • Microsoft Office 2016 (32-bit edition)
  • Microsoft Office 2016 (64-bit edition)
  • Microsoft Office 2013 RT Service Pack 1
  • Microsoft Office 2013 Service Pack 1 (32-bit editions)
  • Microsoft Office 2013 Service Pack 1 (64-bit editions)

Security Updates (5)

Acknowledgments

<a href="https://www.linkedin.com/in/jaanuskaap/">Jaanus K&#228;&#228;p</a> with <a href="https://www.clarifiedsecurity.com/">Clarified Security</a>, <a href="https://www.linkedin.com/in/jaanuskaap/">Jaanus K&#228;&#228;p</a> with <a href="https://www.clarifiedsecurity.com/">Clarified Security</a>

Revision History

  • 2022-01-11: Information published.
  • 2022-01-13: 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 for more information and download links.