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Google Chrome Zero-Day Vulnerability (CVE-2025-6554) Actively Exploited – Patch Now 

Summary : Security Advisory: Google has issued an urgent security update for Chrome browser users worldwide, addressing a high-severity zero-day vulnerability in the Chrome browser CVE-2025-6554 actively being exploited by cybercriminals.

OEM Google 
Severity High 
CVSS Score N/A 
CVEs CVE-2025-6554 
POC Available No 
Actively Exploited Yes 
Exploited in Wild Yes 
Advisory Version 1.0 

Overview 

This is a type confusion flaw in Chrome’s V8 JavaScript engine allows arbitrary code execution and it’s actively being exploited in the wild. 

The vulnerability was discovered by Clément Lecigne of Google’s Threat Analysis Group (TAG) on June 25, 2025, and a temporary mitigation was pushed on June 26, 2025. This internal discovery highlights the ongoing security monitoring efforts within Google’s infrastructure.

The mitigation measure passed through a configuration change pushed to all stable channel users across all platforms.

                Vulnerability Name CVE ID Product Affected Severity Fixed Version 
​Type Confusion in V8 Engine vulnerability  CVE-2025-6554 Google Chrome  High  138.0.7204.96/.97 (Windows)  
138.0.7204.92/.93 (Mac)  
138.0.7204.96 (Linux) 

Technical Summary 

CVE-2025-6554 is a type confusion vulnerability in Chrome’s V8 JavaScript engine. It allows threat actors to exploit memory misinterpretation and execute arbitrary code, potentially compromising the browser or the underlying system. Google has confirmed active exploitation of this flaw. 

CVE ID System Affected  Vulnerability Details Impact 
CVE-2025-6554 Chrome on Windows, macOS, Linux Type confusion in the V8 JavaScript engine allows improper memory handling, leading to code execution  Remote code execution.  Potential system compromise.  

Remediation: 

A full fix is available in the latest stable channel update. Users are strongly advised to update immediately to ensure full protection. 

  • Users should immediately update Google Chrome to the latest patched version: 
  • Windows: 138.0.7204.96/.97 
  • macOS: 138.0.7204.92/.93 
  • Linux: 138.0.7204.96 

Conclusion: 

The exploitation of CVE-2025-6554 in the wild highlights the urgency of applying the latest Chrome security update. Type confusion vulnerabilities like this can lead to full system compromise and are highly sought-after by cybercriminals. Users and organizations should take immediate action to mitigate potential risks. 

Organizations using Chrome in enterprise environments should prioritize this update across their networks.

The combination of confirmed active exploitation and the high-severity rating makes this patch deployment critical for maintaining organizational cybersecurity posture.

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