CVE-2021-42292
Microsoft Excel Security Feature Bypass
Published Nov 9, 2021 · updated Aug 19, 2026 · microsoft 365 apps
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Timeline
Detection, updates, and resolution for this record.
Nov 9, 2021 · Catalog
Detected
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Nov 17, 2021 · CISA KEV
Known exploited
Apply updates per vendor instructions.
Dec 1, 2021 · CISA KEV
Remediation due
Apply updates per vendor instructions.
Aug 19, 2026 · Catalog
Updated
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Required action
Apply updates per vendor instructions.
CISA due date Dec 1, 2021
Affected
- cpe microsoft/365 appsversion unspecified
- cpe microsoft/excel2013
- cpe microsoft/excel2016
- cpe microsoft/office2013
- cpe microsoft/office2019
- vendor Microsoft Officeversion unspecified
Sources
- CISA KEVCVE-2021-42292
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
cisa.gov - CVE.orgCVE-2021-42292
Official CVE identifier
cve.org - FIRST EPSSCVE-2021-42292
30-day exploitation probability 43.0%
first.org - NIST NVDCVE-2021-42292
Microsoft Excel Security Feature Bypass Vulnerability
nvd.nist.gov