CVE-2021-30632
Google Chromium V8 Out-of-Bounds Write Vulnerability
- Published
- Oct 8, 2021
- Updated
- Oct 21, 2025
- Assigning CNA
- Chrome
- Evidence observed
- Nov 3, 2021
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.2%
- Model date
- Oct 18, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
Out of bounds write in V8 in Google Chrome prior to 93.0.4577.82 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Sources
- CVE-2021-30632Exploit
Chrome V8 RCE exploit for CVE-2021-30632 targeting Windows systems. Tested on Chrome 91-93. Includes JS POC and in-the-wild bug analysis reference.
- CVE-2021-30632Exploit
m-y-mo: https://github.com/github/securitylab/tree/main/SecurityExploits/Chrome/v8/CVE-2021-30632
- chrome_v8_ndaysExploit
Chrome V8 n-day exploits that I've written.
- ChExp_CVE-2021-30632Exploit
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