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Case File

CVE-2021-21157

HIGH · CVSS 8.8 EPSS 9.46% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-22 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-21157
Severity
HIGH
CVSS
8.8
EPSS
9.46%
Linux Chrome

Original NVD Description

Use after free in Web Sockets in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.