CVE-2021-21207

HighCVSS 8.6/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Apr 26, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-21207: High severity, CVSS 8.6 | Vulnix