AUGUST 4, 2026
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Case File

CVE-2021-30558

HIGH · CVSS 8.8 EPSS 11.49%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-01-02 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Chrome. Its EPSS score suggests a 11.5% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2021-30558
Severity
HIGH
CVSS
8.8
EPSS
11.49%
Chrome

Original NVD Description

Insufficient policy enforcement in content security policy in Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chrome security severity: Medium)

Related CVEs

Other vulnerabilities affecting the same vendor(s)