CVE-2021-21193

HIGH KEV

Google Chrome <89.0.4389.90 - Use After Free

Title source: llm

Description

Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Exploits (1)

nomisec WRITEUP

by mehrzad1994 · poc

https://github.com/mehrzad1994/CVE-2021-21193

View Code ZIP pw:eip

References (6)

[Release Notes] https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html

[Permissions Required] https://crbug.com/1186287

[Release Notes] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/

[Third Party Advisory] https://security.gentoo.org/glsa/202104-08

[Mailing List, Third Party Advisory] https://www.debian.org/security/2021/dsa-4886

[US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21193

Scores

CVSS v3 8.8

EPSS 0.2128

EPSS Percentile 95.7%

Attack Vector NETWORK

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

Details

CISA KEV 2021-11-03

VulnCheck KEV 2021-03-09

InTheWild.io 2021-03-09

ENISA EUVD EUVD-2021-8584

CWE

CWE-416

Status published

Products (3)

debian/debian_linux 10.0

fedoraproject/fedora 32

google/chrome < 89.0.4389.90

Published Mar 16, 2021

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026