CVE-2021-21207
8.6
HIGH
CVSS 3.1
EPSS 0.94%
Description
Use after free in IndexedDB in Google Chrome prior to 90.0.4430.72 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-2021-21207
To remediate CVE-2021-21207, upgrade the affected package to a fixed version below.
- Debian/chromium—upgrade to 90.0.4430.72-1 or later
Is CVE-2021-21207 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 90.0.4430.72-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |