CVE-2021-42292

HIGH7.8

CISA KEV

Published 2021-11-10 · Updated 2026-08-19 · Source secure@microsoft.com

Summary

CVE-2021-42292 is a high-severity (CVSS 7.8) vulnerability in Microsoft Office. CISA added it to the Known Exploited Vulnerabilities catalog on November 17, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by December 1, 2021. CISA does not currently list it as used in ransomware campaigns. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

All 390 known-exploited Microsoft vulnerabilities →

Description

Microsoft Excel Security Feature Bypass Vulnerability

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

CISA Known-Exploited Vulnerability

Product: Microsoft — Office

Name: Microsoft Excel Security Feature Bypass

Date added: 2021-11-17 · Due: 2021-12-01

Required action: Apply updates per vendor instructions.

References

View on NVD

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