[ CVE-2021-42292 · Published 10 Nov 2021 ]

Microsoft Excel Security Feature Bypass

Exploited · CISA KEV CVSS 7.8 EPSS 43%Fix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-17
  • EPSS: 43% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

Microsoft Excel Security Feature Bypass Vulnerability

CISA: A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 1 Dec 2021): Apply updates per vendor instructions.