Heap Buffer Overflow in Google Chrome by Google

CVE-2025-0999

What is CVE-2025-0999?

CVE-2025-0999 is a significant vulnerability identified in Google Chrome, specifically within the V8 JavaScript engine. This flaw is categorized as a heap buffer overflow, which occurs when a program writes more data to a buffer than it can hold. This vulnerability allows malicious actors to potentially corrupt the heap, leading to unforeseen behaviors in the browser. Given that Google Chrome is widely used for web browsing and accessing sensitive information, the exploitation of this vulnerability could lead to severe security risks for organizations, potentially exposing them to a range of attacks.

Technical Details

The identified issue in CVE-2025-0999 affects versions of Google Chrome prior to 133.0.6943.126. The vulnerability specifically involves a flaw in the V8 engine, which is responsible for executing JavaScript in Chrome. An attacker could leverage this vulnerability by designing a malicious HTML page that, when visited by a user, executes the crafted code, leading to heap corruption. This could trigger various outcomes, including arbitrary code execution or crashes in the browser.

Potential impact of CVE-2025-0999

1. Data Exposure: Successful exploitation of this vulnerability could allow attackers to access sensitive user data, including credentials and personal information, leading to potential data breaches.

2. Remote Code Execution: The flaw could enable attackers to execute arbitrary code within the context of the browser, potentially allowing them to install malware or take control of the user's system.

3. Browser Instability: The heap buffer overflow could cause instability in the browser, leading to crashes and interruptions that may disrupt business operations and affect productivity.

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