CVE-2021-40442

Published: Nov 10, 2021Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD (Secondary)

Description

Microsoft Excel Remote Code Execution Vulnerability

Affected (10)

Products: Microsoft: 365 Apps, Excel, Office, Office Long Term Servicing Channel, Office Online Server, Office Web Apps Server, Sharepoint Enterprise Server

7 products

Office Long Term Servicing Channel

Office Online Server

Office Web Apps Server

Sharepoint Enterprise Server

Configuration A

10 vulnerable

Vulnerable Software	Affected Versions
Microsoft 365 Apps	All versions
Microsoft Excel	Version 2013 sp1
Microsoft Excel	Version 2016
Microsoft Office	Version 2019
Microsoft Office	Version 2019
Microsoft Office Long Term Servicing Channel	Version 2021
Microsoft Office Long Term Servicing Channel	Version 2021
Microsoft Office Online Server	All versions
Microsoft Office Web Apps Server	Version 2013 sp1
Microsoft Sharepoint Enterprise Server	Version 2013 sp1

References (2)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40442

Source: secure@microsoft.com

PatchVendor Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40442

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.