Microsoft Edge Security Update – 21 July 2025

Microsoft has released an updated version of Microsoft Edge in the stable channel, “138.0.3351.95” to address multiple vulnerabilities.

The addressed vulnerabilities could allow the remote attacker to bypass security restrictions or execute arbitrary code and gain access to the affected system by persuading the victim to visit a specially crafted website.

Sample of the addressed vulnerabilities:

1. Microsoft Edge (Chromium-based) Security Bypass (CVE-2025-6558):

  • CVSS: 8.8
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Consequences: Bypass Security

2. Microsoft Edge (Chromium-based) Code Execution (CVE-2025-7657):

  • CVSS: 8.8
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Consequences: Gain Access

It should be highlighted that Google is aware that the zero-day vulnerability “CVE-2025-6558″ is being exploited in the wild.

Vulnerabilities
  • CVE-2025-7656
  • CVE-2025-7657
  • CVE-2025-6558
Mitigations

The enterprise should deploy this patch as soon as the testing phase is completed.

Microsoft Edge Security Update

References