CVE-2021-42292
KEVMicrosoft Excel Security Feature Bypass
Description
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Microsoft Excel Security Feature Bypass Vulnerability
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HPublishedNov 10, 2021
Last modifiedAug 19, 2026
Added to KEVNov 17, 2021
Remediation dueDec 1, 2021
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42292PatchVendor Advisory
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42292PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-42292US Government Resource
0 recent articles mention this CVE
73
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1791 days
- CVSS
- 7.8 HIGH
- EPSS (30-day exploit probability)
- 43.0% · top 1% of all CVEs
- Weakness
- NVD-CWE-Other
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.