CVE-2020-17129: 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

2020-Dec

Released

2020-12-08

Last Updated

2020-12-10

EPSS Score

12.93% (percentile: 94.1%)

FAQ

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

Affected Products (13)

Microsoft Office

• Microsoft Office 2019 for 32-bit editions
• Microsoft Office 2019 for 64-bit editions
• Microsoft Office Online Server
• Microsoft 365 Apps for Enterprise for 32-bit Systems
• Microsoft 365 Apps for Enterprise for 64-bit Systems
• Microsoft Excel 2016 (32-bit edition)
• Microsoft Excel 2016 (64-bit edition)
• Microsoft Excel 2010 Service Pack 2 (32-bit editions)
• Microsoft Excel 2010 Service Pack 2 (64-bit editions)
• Microsoft Excel 2013 RT Service Pack 1
• Microsoft Excel 2013 Service Pack 1 (32-bit editions)
• Microsoft Excel 2013 Service Pack 1 (64-bit editions)
• Microsoft Office Web Apps 2013 Service Pack 1

Security Updates (8)

• 4486750
• 4486754
• 4486754
• 4493148
• 4493148
• 4493139
• 4493139
• 4486760

Acknowledgments

Jinquan<a href="https://twitter.com/jq0904">(@jq0904)</a> of DBAPPSecurity Lieying Lab

Revision History

• 2020-12-08: Information published.
• 2020-12-10: Corrected Download and Article links for affected versions of Microsoft Excel 2010 in the Security Updates table. This is an informational change only.