# MA-1364.072025: MyCERT Advisory - Actively Exploited Zero - Day Vulnerability in Google Chrome

**Date:** 16 Jul 2025  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-1364.072025  
**Advisory ID:** MA-1364.072025

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**1.0 Introduction**
Recently, Google has released a critical security update for Chrome Desktop addressing sex vulnerabilities, including CVE-2025-6558, a zero-day exploited in the wild.
**2.0 Impact**
This flaw allows attackers to manipulate rendering operations to execute arbitrary code by exploiting untrusted inuput validation in GPU processes. 
**3.0 Affected ProductsZero-Day Vulnerability Details**
- CVE-2025-6558 – Zero-Day in ANGLE GPU Layer (High Severity)
- Component: ANGLE (Almost Native Graphics Layer Engine)
- Type: Improper input validation
- Impact: Malicious rendering input may trigger GPU-based code execution
- Status: Actively exploited
**Chrome Affected version:**
Versions prior to 138.0.7204.157/.158 for Windows, Mac and 138.0.7204.157 for Linux
**4.0 Recommendations**
CyberSecurity Malaysia encourages users and administrators to review [Google Chrome’s releases](https://chromereleases.googleblog.com/) for more information and apply the necessary updates.
Kindly refer to the following URLs for more information:
- <https://chromereleases.googleblog.com/2025/07/stable-channel-update-for-desktop_15.html>
Generally, Cyber999 advises the users to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact us through the following channels:
E-mail: cyber999[at]cybersecurity.my 
Phone: 1-300-88-2999 (monitored during business hours) 
Mobile: +60 19 2665850 (24x7 call incident reporting) 
Business Hours: Mon - Fri 08:30 -17:30 MYT 
Web: [https://www.cybersecurity.my](https://www.mycert.org.my/)
**5.0 References**
- <https://chromereleases.googleblog.com/2025/07/stable-channel-update-for-desktop_15.html>
- [https://chromereleases.googleblog.com](https://chromereleases.googleblog.com/)