CVE-2021-21111

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CVSS 3.1

9.6 critical

EPSS

1%p63

Published

Jan 8, 2021 (Jan 8, 2021)

Modified

Jun 17, 2026

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.

Vendors: google fedoraproject debian
Products: chrome, fedora, debian linux
Weakness: CWE-1021
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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