AUGUST 4, 2026
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Case File

CVE-2021-21222

MEDIUM · CVSS 6.5 EPSS 1.75%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-26 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. It affects Chrome. It may be remotely exploitable.

CVE
CVE-2021-21222
Severity
MEDIUM
CVSS
6.5
EPSS
1.75%
Chrome

Original NVD Description

Heap buffer overflow in V8 in Google Chrome prior to 90.0.4430.85 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page.

Related CVEs

Other vulnerabilities affecting the same vendor(s)