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CVE-2021-38003

HighPublished

Google Chromium V8 Memory Corruption Vulnerability

Published: Nov 23, 2021
Updated: Oct 21, 2025
Assigning CNA: Chrome
Evidence observed: Nov 3, 2021

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

38.6%

Moderate · next 30 days

Percentile: 98.6%
Model date: Sep 21, 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

Inappropriate implementation in V8 in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Sources

Chrome-V8-RCE-CVE-2021-38003Exploit
CVE-2021-38003 exploits extracted from https://twitter.com/WhichbufferArda/status/1609604183535284224
chrome_v8_ndaysExploit
Chrome V8 n-day exploits that I've written.
Vulnerability_PoCPoC
Collection of proof-of-concept exploits and technical analyses for high-impact CVEs, covering browser memory corruption, TCP/IP RCE, and web application vulnerabilities.

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