CVE-2021-21148

8.8 HIGH CISA KEV - Actively Exploited
Published: February 09, 2021 Modified: October 24, 2025
View on NVD

Description

Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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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
http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
Source: chrome-cve-admin@google.com
Third Party Advisory VDB Entry
https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html
Source: chrome-cve-admin@google.com
Release Notes
https://crbug.com/1170176
Source: chrome-cve-admin@google.com
Permissions Required
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
Source: chrome-cve-admin@google.com
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
Source: chrome-cve-admin@google.com
Release Notes
https://security.gentoo.org/glsa/202104-08
Source: chrome-cve-admin@google.com
Third Party Advisory
https://www.debian.org/security/2021/dsa-4858
Source: chrome-cve-admin@google.com
Mailing List Third Party Advisory
http://packetstormsecurity.com/files/162579/Chrome-Array-Transfer-Bypass.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://crbug.com/1170176
Source: af854a3a-2127-422b-91ae-364da2661108
Permissions Required
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://security.gentoo.org/glsa/202104-08
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2021/dsa-4858
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21148
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

15 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
22.3%
96th percentile
Exploitation Status
Actively Exploited
Remediation due: 2021-11-17

Weaknesses (CWE)

CWE-787 CWE-787

Affected Vendors

debian fedoraproject google

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