CVE-2021-4102highunder attackCWE-416

CVE-2021-4102: high-severity vulnerability in Google Chrome

Published · Updated

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 8.8epss 7.8%
from disclosure to weapon
Published on NVDFeb 11
CISA KEVDec 15
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Not affected
1 product — because the vulnerable code is not present in the product
red_hat_products
Action required by CISAfederal deadline: 2021-12-29

Apply updates per vendor instructions.

In short

Google Chrome had a flaw where freed memory could still be accessed, allowing attackers to crash the browser or potentially run malicious code through a specially crafted webpage.

Technical detail

Use-after-free vulnerability in V8 engine allows remote attacker to trigger heap corruption via malicious HTML. Exploitation requires user to visit crafted page; successful exploitation can lead to arbitrary code execution or denial of service.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Google · Chrome