CVE-2021-27059

Microsoft Office Remote Code Execution Vulnerability

CVE-2021-27059 is fixed in 7 products on 1 platform, first by KB4504703, released March 12, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEV

CVSS

7.6

Important

Exploitation

Exploited

Reported by the vendor

CISA KEV

Nov 3, 2021

Federal due date Nov 17, 2021

EPSS

0.0608

93rd percentile

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft Office 2010 Service Pack 2 (32-bit editions)	KB4504703	Mar 12, 2021
Microsoft Office 2010 Service Pack 2 (64-bit editions)	KB4504703	Mar 12, 2021
Microsoft Office 2013 RT Service Pack 1	KB4493228	Mar 12, 2021
Microsoft Office 2013 Service Pack 1 (32-bit editions)	KB4493228	Mar 12, 2021
Microsoft Office 2013 Service Pack 1 (64-bit editions)	KB4493228	Mar 12, 2021
Microsoft Office 2016 (32-bit edition)	KB4493225	Mar 12, 2021
Microsoft Office 2016 (64-bit edition)	KB4493225	Mar 12, 2021

Details

Published
March 12, 2021
CISA required action
Apply updates per vendor instructions.
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27059

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