CVE-2021-21191

HIGH

Google Chrome <89.0.4389.90 - Use After Free

Title source: llm

Description

Use after free in WebRTC 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 WORKING POC

by JacobTaylor3 · poc

https://github.com/JacobTaylor3/CVE-2021-21191---CVE-2021-21192

View Code ZIP pw:eip

References (5)

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

[Exploit, Issue Tracking, Patch, Third Party Advisory] https://crbug.com/1167357

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

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

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/

Scores

CVSS v3 8.8

EPSS 0.0099

EPSS Percentile 76.9%

Attack Vector NETWORK

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

Details

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

Tracked Since Feb 18, 2026