CVE-2021-42292
Microsoft Excel Security Feature Bypass
CVSS
7.8
High
EPSS
43.0%
p99
KEV
YES
Nov 17, 2021
Exploit Today
80
0-100
Published: Nov 10, 2021 · Last modified: Aug 19, 2026
43.0%EPSS · 30 days43.0%
2026-09-172026-10-15
Product
Microsoft / Office
Vulnerability
Microsoft Excel Security Feature Bypass
Added to KEV
Nov 17, 2021
Remediate by
Dec 1, 2021
Known ransomware use
No
Summary description
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.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-42292
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