CVE-2021-40486

Published: Oct 13, 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 Word Remote Code Execution Vulnerability

Affected (9)

Products: Microsoft: Office, Office Online Server, Office Web Apps Server, Sharepoint Enterprise Server, Sharepoint Server, Word

6 products

Office Online Server

Office Web Apps Server

Sharepoint Enterprise Server

Sharepoint Server

Configuration A

9 vulnerable

Vulnerable Software	Affected Versions
Microsoft Office	Version 2019
Microsoft Office Online Server	All versions
Microsoft Office Web Apps Server	Version 2013 sp1
Microsoft Sharepoint Enterprise Server	Version 2013 sp1
Microsoft Sharepoint Enterprise Server	Version 2016
Microsoft Sharepoint Server	Version 2019
Microsoft Word	Version 2013 sp1
Microsoft Word	Version 2013 sp1
Microsoft Word	Version 2016

References (4)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40486

Source: secure@microsoft.com

PatchVendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-1158/

Source: secure@microsoft.com

Third Party Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40486

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

PatchVendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-1158/

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

Third Party Advisory

Timeline

No history available yet.