CVE-2021-30633

CRITICAL KEV

Google Chrome <93.0.4577.82 - Use After Free

Title source: llm

Description

Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

References (5)

[Release Notes] https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html

[Permissions Required] https://crbug.com/1247766

[Release Notes] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/

[Release Notes] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

[US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30633

Scores

CVSS v3 9.6

EPSS 0.3816

EPSS Percentile 97.2%

Attack Vector NETWORK

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

Details

CISA KEV 2021-11-03

VulnCheck KEV 2021-09-08

InTheWild.io 2021-09-08

ENISA EUVD EUVD-2021-17553

CWE

CWE-416

Status published

Products (3)

fedoraproject/fedora 33

fedoraproject/fedora 35

google/chrome < 93.0.4577.82

Published Oct 08, 2021

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026