CVE-2021-38003

8.8 HIGH CISA KEV - Actively Exploited

Published: November 23, 2021 Modified: October 24, 2025

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html

Source: chrome-cve-admin@google.com

Release Notes

https://crbug.com/1263462

Source: chrome-cve-admin@google.com

Exploit Issue Tracking

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/

Source: chrome-cve-admin@google.com

Release Notes

https://www.debian.org/security/2022/dsa-5046

Source: chrome-cve-admin@google.com

Mailing List Third Party Advisory

https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes

https://crbug.com/1263462

Source: af854a3a-2127-422b-91ae-364da2661108

Exploit Issue Tracking

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3W46HRT2UVHWSLZB6JZHQF6JNQWKV744/

Source: af854a3a-2127-422b-91ae-364da2661108

Release Notes

https://www.debian.org/security/2022/dsa-5046

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Third Party Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38003

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

9 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.8 / 10.0

EPSS (Exploit Probability)

76.6%

99th percentile

Exploitation Status

Actively Exploited

Remediation due: 2021-11-17

Weaknesses (CWE)

CWE-755 CWE-755

Affected Vendors

debian fedoraproject google

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