CVE-2021-40474

HIGH

Microsoft Excel - Remote Code Execution

Title source: llm

Microsoft Excel Remote Code Execution Vulnerability

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

CVSS v3 7.8

EPSS 0.0219

EPSS Percentile 80.6%

Attack Vector LOCAL

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

Status published

Products (7)

microsoft/365_apps

microsoft/excel 2013 sp1 (2 CPE variants)

microsoft/excel 2016

microsoft/office 2019 (2 CPE variants)

microsoft/office_long_term_servicing_channel 2021 (2 CPE variants)

microsoft/office_online_server

microsoft/office_web_apps_server 2013 sp1

Published Oct 13, 2021

Tracked Since Feb 18, 2026