CVE-2021-30551

HighCVSS 8.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

Type confusion in V8 in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-843

Affected software

VendorProductVersions
GoogleChrome>= unspecified, < 91.0.4472.101

References

Timeline

Published
Jun 15, 2021
Last modified
Jun 17, 2026
Added to CISA KEV
Nov 3, 2021
NVD status
Analyzed

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CVE-2021-30551: High severity, CVSS 8.8 | Vulnix