Urgent Chrome Update Required to Combat Active "Type Confusion" Vulnerability

Google’s security team identified a type confusion vulnerability in the V8 JavaScript /Web Assembly engine used by Chrome. Attackers can  weaponized this  exploit to achieve remote code execution on victims’ machines via malicious web content. Google released an emergency Chrome update to remediate the issue and warned that  exploit exists in the wild.

This flaw,  a type confusion bug in Chrome’s V8 JavaScript and WebAssembly engine, simply means that  attackers can trick Chrome into handling code incorrectly, giving them the ability to crash systems or, more dangerously, execute arbitrary code remotely.

What is affected?

• Products: Google Chrome desktop and other Chromium based browsers that inherit the V8 engine .
• Platforms: Windows, macOS, Linux (and potentially other OS builds that use the affected V8 builds).

Who is at risk

• All Chrome users who have not applied the update ,home users, remote workers, developers.
• Enterprises and managed endpoints where browsers are not centrally updated quickly .
• High-value targets admins, developers, executives  and users who visit untrusted web pages .

How it’s being used

• Drive-by attacks: Simply visiting a malicious or compromised website could silently trigger the exploit.
• Weaponized content: Malicious JavaScript or Web Assembly payloads take advantage of the bug to run attacker-controlled code.
• Exploitation in the wild: Google confirmed real-world abuse but has withheld details to prevent copycat attacks.

Why it matters

• Scale: Chrome commands billions of users worldwide making this one of the most impactful attack surfaces today.
• Pattern: This is the sixth Chrome zero-day of 2025 already, highlighting a year of aggressive targeting against browsers.
• Potential Impact: From stealing credentials and session cookies to installing malware or pivoting into corporate networks.

Recommendation

1)     Update immediately

• Chrome: Update to version 140.0.7339.185/.186 (Windows/macOS) or 140.0.7339.185 (Linux).
• Path: Menu → Help → About Google Chrome → Relaunch after update.

2)     Patch Chromium based browsers : Update  Chromium-based browsers, such as Microsoft Edge, Brave, Opera, and Vivaldi,

3)     Harden defences

• Restrict risky browsing for high-privilege accounts (admins, developers).
• Enforce policies that disable unnecessary plugins, block third-party extensions, a limit file downloads     from untrusted sites and use URL filtering .
• Deploy endpoint monitoring to detect suspicious Chrome child processes.

4)     Educate users: avoid unknown links, treat unexpected attachments/links with suspicion, and verify before clicking.