All vulnerabilities
CVE-2021-27059

Microsoft Office Remote Code Execution Vulnerability

Microsoft OfficeApplications & CMS
Open in ThreatlineRecord JSON
CVSS
7.6High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)6.08%Chance of exploitation activity in the next 30 days, higher than 93% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in14.0.7266.5000Also 16.0.5134.1000CVE List
Federal deadline17 Nov 2021Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

  • 14.0.7266.5000Microsoft Office 2010 Service Pack 2CVE List
  • 16.0.5134.1000Microsoft Office 2016CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 11 Mar 2021, 15:49 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Microsoft Office contains an unspecified vulnerability that allows for remote code execution.

Text from CVE List

Affected versions 3

  • Microsoft Office 2010 Service Pack 2affected: 13.0.0.0 before 14.0.7266.5000CVE List
  • Microsoft Office 2013 Service Pack 1affected: 15.0.0 before publicationCVE List
  • Microsoft Office 2016affected: 16.0.0 before 16.0.5134.1000CVE List

References 4