Overview
The cybersecurity community must turn its attention to a new vulnerability that has been identified in Google Chrome. Known as CVE-2025-9132, this critical issue has the potential to put millions of users at risk. The vulnerability, which resides in the V8 engine of Google Chrome, allows for an out of bounds write, which can be exploited by a remote attacker through a carefully crafted HTML page. The severity of this vulnerability is deemed high due to its potential to compromise systems or leak data.
Vulnerability Summary
CVE ID: CVE-2025-9132
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
Google Chrome | Prior to 139.0.7258.138
How the Exploit Works
This vulnerability is based on an out of bounds write error in Google Chrome’s V8 engine. An attacker can take advantage of this flaw by crafting a malicious HTML page, which when loaded by a victim’s browser, causes an overflow in the memory space allocated to the V8 engine. This overflow can corrupt the heap data structure, allowing the attacker to manipulate the data and code execution flow, potentially leading to a full system compromise.
Conceptual Example Code
Consider an attacker who crafts an HTML page with the following JavaScript code:
let arr = new Array(1);
arr.length = 4294967295;
arr.fill('CVE-2025-9132');The above code tries to create an array with a length exceeding the maximum allowed length, causing an out of bounds write when the ‘fill’ function is called. If this code is executed in a vulnerable version of Google Chrome, it could result in heap corruption, creating an opportunity for the attacker to inject malicious code and compromise the system.