Vulnerability Database

309,130

Total vulnerabilities in the database

CVE-2021-21111

Insufficient policy enforcement in WebUI in Google Chrome prior to 87.0.4280.141 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.

  • Published: Jan 8, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21111
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.6
  • AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
google / chrome - 87.0.4280.141
fedoraproject / fedora 32 32.x
fedoraproject / fedora 33 33.x
debian / debian_linux 10.0 10.0.x