CVE-2021-30549

HIGH

Google Chrome <91.0.4472.101 - Use After Free

Title source: llm
STIX 2.1

Description

Use after free in Spell check in Google Chrome prior to 91.0.4472.101 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

References (5)

Core 5
Core References
Issue Tracking, Permissions Required, Third Party Advisory x_refsource_misc
https://crbug.com/1212498
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202107-06

Scores

CVSS v3 8.8
EPSS 0.0093
EPSS Percentile 56.3%
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)
fedoraproject/fedora 33
fedoraproject/fedora 34
google/chrome < 91.0.4472.101
Published Jun 15, 2021
Tracked Since Feb 18, 2026