CVE-2021-30563 : Type Confusion in V8 in Google Chrome prior to 91.0.4472.164 allowed a remote at

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.

Published 2021-08-03 19:15:08

Updated 2025-02-19 19:39:31

Source Chrome

View at NVD, CVE.org

Products affected by CVE-2021-30563

Google » Chrome
Versions before (<) 91.0.4472.164
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Matching versions

CVE-2021-30563 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Google Chromium V8 Type Confusion Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, a

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2021-30563

Added on 2021-11-03 Action due date 2021-11-17

Exploit prediction scoring system (EPSS) score for CVE-2021-30563

EPSS FAQ

8.75%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 92 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-30563

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0	2025-01-29
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-30563

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)

References for CVE-2021-30563

https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html

Chrome Releases: Stable Channel Update for Desktop
Release Notes;Vendor Advisory

CVEs referencing this url
https://crbug.com/1228407

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