CVE-2021-21111
9.6
CRITICAL
CVSS 3.1
EPSS 1.1%
Description
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.
How to fix CVE-2021-21111
To remediate CVE-2021-21111, upgrade the affected package to a fixed version below.
- Debian/chromium—upgrade to 87.0.4280.141-0.1 or later
Is CVE-2021-21111 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 87.0.4280.141-0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |