CVE-2021-37973

CRITICAL KEV

Google Chrome < 94.0.4606.61 - Use After Free

Title source: rule

Description

Use after free in Portals in Google Chrome prior to 94.0.4606.61 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

References (6)

[Release Notes] https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html

[Issue Tracking, Patch, Vendor Advisory] https://crbug.com/1251727

[Release Notes] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

[Release Notes] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

[Mailing List, Third Party Advisory] https://www.debian.org/security/2022/dsa-5046

[US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37973

Scores

CVSS v3 9.6

EPSS 0.0650

EPSS Percentile 91.1%

Attack Vector NETWORK

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

Details

CISA KEV 2021-11-03

VulnCheck KEV 2021-09-21

InTheWild.io 2021-09-21

ENISA EUVD EUVD-2021-24446

CWE

CWE-416

Status published

Products (5)

debian/debian_linux 10.0

debian/debian_linux 11.0

fedoraproject/fedora 33

fedoraproject/fedora 35

google/chrome < 94.0.4606.61

Published Oct 08, 2021

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026