⚠ Actively exploited
Added to CISA KEV on 2021-11-03. Federal agencies required to patch by 2021-11-17. Required action: Apply updates per vendor instructions..

CVE-2021-30563 — Type Confusion in Google Chrome

CWE-843 — Type ConfusionCWE-122 — Heap-based Buffer Overflow13 documents11 sources
Severity
8.8HIGHNVD
EPSS
3.1%
top 13.24%
CISA KEV
KEV
Added 2021-11-03
Due 2021-11-17
Exploit
Exploited in wild
Active exploitation observed
Affected products
5
Google ChromeChromiumDebian Chromium+2 more
Timeline
PublishedAug 3
KEV addedNov 3
KEV dueNov 17
Latest updateMay 24
CISA Required Action: Apply updates per vendor instructions.

Description

Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages6 packages

▶CVEListV5google/chromeunspecified — 91.0.4472.164
▶NVDgoogle/chrome< 91.0.4472.164
▶debiandebian/chromium< chromium 93.0.4577.82-1 (bookworm)
▶Debianchromium/chromium< 93.0.4577.82-1+3

🔴Vulnerability Details

4
GHSA
GHSA-m4g6-h6xh-8xr8: Type Confusion in V8 in Google Chrome prior to 91↗2022-05-24
▶
Project0
The More You Know, The More You Know You Don’t Know - Project Zero↗2022-04-01
▶
OSV
CVE-2021-30563: Type Confusion in V8 in Google Chrome prior to 91↗2021-08-03
▶
VulnCheck
Google Chromium V8 Type Confusion Vulnerability↗2021
▶

📋Vendor Advisories

4
CISA
Google Chromium V8 Type Confusion Vulnerability↗2021-11-03
▶
Chrome
Stable Channel Update for Desktop: CVE-2021-30561↗2021-07-15
▶
Microsoft
Chromium: CVE-2021-30563 Type Confusion in V8↗2021-07-13
▶
Debian
CVE-2021-30563: chromium - Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote at...↗2021
▶

🕵️Threat Intelligence

4
Qualys
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys↗2022-02-23
▶
Securelist
IT threat evolution in Q3 2021. PC statistics↗2021-11-26
▶
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01↗2021-11-09
▶
Qualys
Qualys Response to CISA Alert: Binding Operational Directive 22-01 | Qualys↗2021-11-09
▶