Introduction

Microsoft has released Edge version 136.0.3240.64, a significant update that addresses critical issues affecting user experience and security. This release rectifies a malfunction in Microsoft Editor and patches a Chromium-based security vulnerability, CVE-2025-4372.

Microsoft Editor Functionality Restored

Background

Microsoft Editor, integrated into Edge, offers spelling and grammar suggestions to enhance writing quality. However, users reported that after the initial release of Edge 136, the Editor ceased functioning, failing to provide necessary corrections.

Resolution

The 136.0.3240.64 update resolves this issue, restoring the Editor's functionality. Users can now receive spelling and grammar suggestions as intended. For those concerned about privacy, Microsoft Editor processes data on Microsoft's servers. To disable this feature:

  1. Navigate to INLINECODE0 > INLINECODE1 > INLINECODE2 .
  2. Toggle off "Enable grammar and spellcheck assistance".

Addressing CVE-2025-4372: Chromium Security Vulnerability

Technical Details

The update also addresses CVE-2025-4372, a "use after free" vulnerability in WebAudio. This flaw could allow remote attackers to exploit heap corruption via crafted HTML pages, potentially leading to arbitrary code execution.

Implications

While classified as medium severity, such vulnerabilities can be exploited to compromise user systems. Prompt updates are essential to mitigate these risks.

Update Process

To ensure protection and functionality:

  1. Open Microsoft Edge.
  2. Go to INLINECODE3 .
  3. The browser will automatically check for updates and install version 136.0.3240.64 if available.

Conclusion

The release of Edge 136.0.3240.64 underscores Microsoft's commitment to user experience and security. Users are encouraged to update promptly to benefit from these fixes.