Home / Vulnerabilities / CVE-2021-21220
HIGH SEVERITY
CVE-2021-21220 Google · Chromium V8

Google Chromium V8 Improper Input Validation Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH
8.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

92.59 %
Predictive Probability
Percentile Rank
99.7 th

Documented as more likely to be exploited than 99.7% of known CVEs.

Detection Date

Nov 03, 2021

Remediation Due

Nov 17, 2021

CISA Catalog Active

Threat Analysis

Google Chromium V8 Engine contains an improper input validation vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence