CVE-2021-37973

high-risk
Published 2021-10-08

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.

Do I need to act?

~
6.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
!
CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.6/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Debian Google Fedoraproject

References (11)

Release Notes https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_...
Issue Tracking https://crbug.com/1251727
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Mailing List https://www.debian.org/security/2022/dsa-5046
Release Notes https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_...
Issue Tracking https://crbug.com/1251727
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Release Notes https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Mailing List https://www.debian.org/security/2022/dsa-5046
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
60
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 16/34 · Moderate
Exposure 12/34 · Low