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CVE-2021-37973

🔥 Known Exploited (CISA KEV)CRITICAL

9.6

CVSS Severity Score

EPSS Score31.9820%

EPSS Percentile98.28th

Published2021-10-08

Last Modified2025-10-24

Data SourcesNVDCISA KEVFIRST.org EPSS

Vulnerability 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.

Affected Platforms (CPE)

📦

Google

Chrome

< 94.0.4606.61

💻

Fedoraproject

Fedora

= 33= 35

💻

Debian

Debian Linux

= 10.0= 11.0

References & Advisories

🔗 https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html

🔗 https://crbug.com/1251727

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

🔗 https://www.debian.org/security/2022/dsa-5046

🔗 https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html

🔗 https://crbug.com/1251727

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

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CVE-2021-37973 Detail & Impact Analysis | CVSS 9.6 (CRITICAL) | Cyber-Sec.Space | Cyber-Sec.Space