Google has begun rolling out Chrome version 135.0.7049.84/.85 for Windows and Mac users, along with version 135.0.7049.84 for Linux systems.
This latest stable channel update addresses important security vulnerabilities and will be distributed gradually over the coming days and weeks.
Security Enhancements
The update focuses primarily on bolstering Chrome’s security infrastructure, with two significant security fixes implemented.
Most notably, Google has patched a high-severity vulnerability identified as CVE-2025-3066, which involved a “Use after free” issue in Chrome’s Site Isolation feature.
“This particular vulnerability could potentially allow attackers to exploit memory that had been freed, potentially leading to code execution within the browser’s security boundaries,” explained a security researcher familiar with the issue.
The CVE-2025-3066 vulnerability was reported by external security researcher Sven Dysthe (@svn-dys) on March 21, 2025.
Google awarded Dysthe a $4,000 bounty for identifying and reporting this critical security flaw through their vulnerability rewards program.
Additional Security Improvements
Beyond the externally reported vulnerability, Google’s internal security team implemented various fixes resulting from their ongoing security initiatives.
These improvements, tracked under reference number 409114118, stem from internal audits, fuzzing operations, and other proactive security measures.
Google’s security team continues to utilize advanced detection tools to identify potential vulnerabilities before they can be exploited.
Their arsenal includes specialized tools such as:
- AddressSanitizer
- MemorySanitizer
- UndefinedBehaviorSanitizer
- Control Flow Integrity
- libFuzzer
- AFL (American Fuzzy Lop)
Limited Disclosure Protocol
As is standard practice with security updates, Google is temporarily restricting access to detailed bug information and related links.
This measure remains in place until a majority of users have installed the update, protecting those who haven’t yet updated from potential exploitation.
Google also maintains these restrictions when vulnerabilities exist in third-party libraries that other projects depend on but haven’t yet patched.
User Recommendations
Security experts recommend that Chrome users update their browsers as soon as possible to mitigate any potential security risks.
Users can verify their current version and check for updates by:
- Clicking the three-dot menu in the top-right corner
- Selecting “Help”
- Choosing “About Google Chrome”
The browser will automatically check for and install any available updates.
Users interested in switching release channels can find instructions on Chrome’s support site.
Google encourages users who encounter new issues to report them by filing a bug through the official channels or seeking assistance through the community help forum.
PrudhviKumar Bommana, representing the Google Chrome team, confirmed that the update is part of Google’s ongoing commitment to maintaining Chrome’s security posture against evolving threats.
For complete details about all changes in this build, users can refer to the changelog available through Google’s official Chrome release documentation.
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