CISA KEV catalog
Confirmed active exploitation.
Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.
- Name
- Google Chrome Use-After-Free Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
Use after free in site isolation in Google Chrome prior to 86.0.4240.198 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
Affected products
google: chrome
References5
- chromereleases.googleblog.com/2020/11/stable-channel-update-for… Release NotesVendor Advisory
- crbug.com/1146709 Permissions RequiredVendor Advisory
- chromereleases.googleblog.com/2020/11/stable-channel-update-for… Release NotesVendor Advisory
- crbug.com/1146709 Permissions RequiredVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=… US Government Resource
Metrics
- CVSS 3.1
-
9.6
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 3% percentile: 86 · as of 2 November 2026
- CWE
- CWE-416
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