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Vulnerability · Published Apr 13, 2021 · Assigned by microsoft

CVE-2021-28453Microsoft Word Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity security flaw in Microsoft 365 Apps for Enterprise from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.1% (higher than 91% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)4.1%top 9.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Microsoft Word Remote Code Execution Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Microsoft SharePoint Enterprise Server 2016 16.0.0 – before publication
Microsoft Microsoft SharePoint Enterprise Server 2013 Service Pack 1 15.0.0 – before publication
Microsoft Microsoft SharePoint Server 2019 16.0.0 – before publication
Microsoft Microsoft Office 2019 19.0.0 – before https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Office 2019 for Mac 16.0.0 – before publication
Microsoft Microsoft Office Online Server 16.0.1 – before publication
Microsoft Microsoft 365 Apps for Enterprise 16.0.1 – before https://aka.ms/OfficeSecurityReleases
Microsoft Microsoft Word 2016 16.0.1 – before publication
Microsoft Microsoft Office 2010 Service Pack 2 13.0.0.0 – before publication
Microsoft Microsoft Office Web Apps 2010 Service Pack 2 13.0.0 – before publication
Microsoft Microsoft Office Web Apps Server 2013 Service Pack 1 15.0.1 – before publication
Microsoft Microsoft SharePoint Server 2010 Service Pack 2 13.0.0.0 – before publication
Microsoft Microsoft Word 2010 Service Pack 2 13.0.0.0 – before publication
Microsoft Microsoft Word 2013 Service Pack 1 15.0.1 – before publication
Microsoft Microsoft Word 2013 Service Pack 1 15.0.1 – before publication

References