A critical vulnerability has been discovered in Google Chrome's V8 engine, potentially allowing attackers to execute malicious code on users' systems. All users are advised to update their browsers to the latest version immediately.
Google Chrome: Google Chrome, the world's most popular web browser, has once again been hit by a significant security flaw. A recent report revealed a serious "type confusion" bug in Chrome's V8 JavaScript engine. This bug could allow attackers to remotely execute malicious code on a user's system. Google has confirmed that this vulnerability has already been exploited "in the wild."
What is this security flaw?
This flaw was found in V8, Chrome's core component responsible for rapidly processing JavaScript. V8 is an open-source engine and forms the foundation of Chrome's performance. A bug named CVE-2025-6554 was identified in this engine and discovered on June 25, 2025, by Clément Lecigne, a security expert from Google's Threat Analysis Group.
Google has classified this as a "High Severity" bug, as an attacker could exploit it by directing a Chrome user to a specially crafted website. As soon as the user opens that website, the attacker could gain complete control to execute code on the system.
How does the attack work?
If a user visits a website designed to exploit this vulnerability, a "type confusion" occurs within the JavaScript engine. This means the program misinterprets some data, allowing the attacker to control the system's memory.
Through this process, the attacker can inject malware into the user's computer, steal sensitive information, or take complete command of the system.
Which platforms are affected?
Google has stated that this security flaw primarily affects Windows, macOS, and Linux versions. The vulnerability has not been observed to affect Android and iOS versions.
Google has updated the following versions for the affected devices:
- Windows: Chrome v138.0.7204.96/.97
- macOS and Linux: Chrome v138.0.7204.92/.93
How to check if your Chrome is updated?
If you're unsure whether your Chrome browser is on the latest version, you can follow these steps:
- Open your Chrome browser.
- Click on the three dots in the upper right corner.
- Go to 'Help'.
- Then click on 'About Chrome'.
- Here, Chrome will automatically check for updates and start downloading if a new version is available.
- Restart Chrome after the download is complete.
Exploitation "in the wild"
The most concerning aspect is that Google has explicitly stated that attackers have already exploited this security flaw. This is referred to in technical terms as "Exploited in the wild" — meaning it was not just a theoretical threat, but some users were actually targeted.
Why is it important to update immediately?
Cyberattacks are now more sophisticated and faster than ever before. If you are using an older version of Chrome, you are unknowingly opening the door for hackers. Therefore, Google and security experts advise all users to update Chrome immediately.
Google periodically releases patches and fixes to address security issues, but the ultimate responsibility lies with the user to install these updates in a timely manner.
What should users do?
- Update the Chrome browser immediately.
- Do not click on any suspicious or unknown websites.
- Keep the 'Safe Browsing' setting enabled in your browser.
- Use antivirus or anti-malware software.
- Regularly check Chrome extensions and remove unnecessary ones.
