Vulnerability · Published Jan 11, 2022 · Assigned by microsoft

CVE-2022-21840Microsoft Office Remote Code Execution Vulnerability

High 8.8

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 3.3% (higher than 88% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)3.3%top 11.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Microsoft Office Remote Code Execution Vulnerability

Affected products (as reported)

Vendor	Product	Versions
Microsoft	Microsoft SharePoint Enterprise Server 2016	16.0.0 – before 16.0.5266.1000
Microsoft	Microsoft SharePoint Enterprise Server 2013 Service Pack 1	15.0.0 – before 15.0.5415.1000
Microsoft	Microsoft SharePoint Server 2019	16.0.0 – before 16.0.10382.20004
Microsoft	Microsoft Office 2019	19.0.0 – before https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office 2019 for Mac	16.0.0 – before 16.57.22011101
Microsoft	Microsoft Office Online Server	16.0.1 – before 16.0.10382.20004
Microsoft	Microsoft 365 Apps for Enterprise	16.0.1 – before https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft Office LTSC for Mac 2021	16.0.1 – before 16.57.22011101
Microsoft	Microsoft Office LTSC 2021	16.0.1 – before https://aka.ms/OfficeSecurityReleases
Microsoft	Microsoft SharePoint Server Subscription Edition	16.0.0 – before 16.0.14326.20714
Microsoft	SharePoint Server Subscription Edition Language Pack	16.0.0 – before 16.0.14326.20714
Microsoft	Microsoft Excel 2016	16.0.0.0 – before 16.0.5266.1000
Microsoft	Microsoft Office 2016	16.0.0 – before 16.0.5266.1000
Microsoft	Microsoft Excel 2013 Service Pack 1	15.0.0.0 – before 15.0.5415.1000
Microsoft	Microsoft Office 2013 Service Pack 1	15.0.0 – before 15.0.5415.1000
Microsoft	Microsoft Office Web Apps Server 2013 Service Pack 1	15.0.1 – before 15.0.5415.1000
Microsoft	Microsoft SharePoint Foundation 2013 Service Pack 1	15.0.0 – before 15.0.5415.1000

References

Microsoft Office Remote Code Execution Vulnerability vendor-advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21840 x_refsource_MISC, x_transferred