CVE-2021-30633CISA KEVEPSS p98.1%

CVE-2021-30633Google Chromium Indexed DB API Use-After-Free Vulnerability

Google / Chromium Indexed DB API

Description

Google Chromium Indexed DB API contains a use-after-free vulnerability that allows a remote attacker, who has compromised the renderer process, to potentially perform a sandbox escape via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Scoring

EPSS32.66% probability of exploitation · percentile 98.1% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2021-11-03

(incoming)1

TypeTargetConfidenceTier
KEVEntryGoogle Chromium Indexed DB API Use-After-Free Vulnerabilitykev-cve-2021-306330%live

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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.