CVE Watch—

CVE-2021-30632

Google Chromium V8 Out-of-Bounds Write Vulnerability

CVSS

—

No CVSS

EPSS

63.2%

p99

KEV

YES

Nov 3, 2021

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

63.2%EPSS · 30 days63.2%

2026-09-162026-10-14

KEV catalog record

Product

Google / Chromium V8

Vulnerability

Google Chromium V8 Out-of-Bounds Write Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

Nov 17, 2021

Known ransomware use

Summary description

Google Chromium V8 Engine contains an out-of-bounds write 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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-30632

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-874918.8 HIG

87.7%

KEV—76Google Chromium V8 Out of Bounds Write Vulnerability24d CVE-2026-850468.8 HIG

98.9%

KEV—80Google Chromium V8 Type Confusion Vulnerability24d CVE-2026-116458.8 HIG

84.0%

KEV—75Google Chromium V8 Out-of-Bounds Read and Write Vulnerability84d CVE-2025-132238.8 HIG

92.1%

KEV—78Google Chromium V8 Type Confusion Vulnerability93d CVE-2025-105859.8 CRI

92.6%

KEV—78Google Chromium V8 Type Confusion Vulnerability93d CVE-2023-30798.8 HIG

98.5%

KEV—80Google Chromium V8 Type Confusion Vulnerability7d