Name: CVE-2021-21139: Improper Restriction of Rendered UI Layers or Frames
Published: 2021-02-09T00:00:00.000Z
Keywords: CVE, CVE-2021-21139, CWE-1021, CVSS 6.5, EPSS 0.04743

Inappropriate implementation in iframe sandbox in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗View advisory ↗	arch-linux-upgrade-latest	Jul 11, 2025	Feb 9, 2021
Debian	View advisory ↗	debian-upgrade-chromium	Feb 9, 2021	Feb 9, 2021
Freebsd	View advisory ↗	freebsd-upgrade-package-chromium	Jan 23, 2021	Jan 22, 2021
Gentoo Linux	View advisory ↗	gentoo-linux-upgrade-www-client-chromiumgentoo-linux-upgrade-www-client-google-chrome	Jan 25, 2021	Jan 22, 2021
Google Chrome	View advisory ↗View advisory ↗View advisory ↗	google-chrome-upgrade-latest	Feb 16, 2021	Feb 9, 2021
Microsoft Edge	View advisory ↗View advisory ↗	microsoft-edge-upgrade-latest	Nov 17, 2021	Jan 21, 2021
Suse	—	suse-upgrade-chromedriversuse-upgrade-chromium	Jan 27, 2021	Jan 19, 2021
Ubuntu	View advisory ↗View advisory ↗	ubuntu-upgrade-chromium-browser	Nov 19, 2024	Feb 9, 2021

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