CVE-2021-37973
CriticalActively exploited (CISA KEV)
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.
SeverityCritical
CVSS9.6
Exploit probability—
Product
Google Chromium Portals
PublishedOct 8, 2021
First seenOct 8, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-416Use after free
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Update
- google chrome94.0.4606.61 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google chrome | v < 94.0.4606.61 | 94.0.4606.61 |
| fedoraproject fedora | 33, 35 | — |
| debian debian_linux | 10.0, 11.0 | — |
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