CVE-2022-21842: Microsoft Word 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

EPSS Score

2.95% (percentile: 86.5%)

FAQ

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

Affected Products (3)

Microsoft Office

• Microsoft SharePoint Enterprise Server 2016
• Microsoft Word 2016 (32-bit edition)
• Microsoft Word 2016 (64-bit edition)

Security Updates (4)

• 5002113
• 5002118
• 5002057
• 5002057

Acknowledgments

<a href="https://twitter.com/rwxcode">ShiLongan</a> with <a href="https://www.nsfocus.com.cn/">NSFOCUS TIANJI LAB</a>

Revision History

• 2022-01-11: Information published.