Security Update Recommendation for Microsoft Edge Browser (Version 150.0.4078.99)

Overview

Microsoft has released a security update to address vulnerabilities in Microsoft Edge (Chromium-based). This update applies to versions prior to 150.0.4078.99, And users should update to the latest version.

Resolved Vulnerabilities

• A High-severity memory free-and-use vulnerability in the Blink engine of Microsoft Edge (Chromium-based) (CVE-2026-16805).
• A High-severity out-of-bounds write vulnerability in the Codecs feature of Microsoft Edge (Chromium-based) (CVE-2026-16807).
• A High-severity memory deallocation and reuse vulnerability in the Input feature of Microsoft Edge (Chromium-based) (CVE-2026-16804).
• A High-severity memory deallocation and reuse vulnerability in the WebMCP feature of Microsoft Edge (Chromium-based) (CVE-2026-16806).

Patch Information

Vulnerability Patches were provided through the July 25, 2026, update. Users were instructed to install the updates automatically using Windows Update or to download and install them manually using the URLs provided in the product information.