High Threat Security Alert (A25-07-13): Multiple Vulnerabilities in Microsoft Edge

Description:

Microsoft released a security update to address vulnerabilities in Microsoft Edge. A remote attacker could entice a user to open a web page with specially crafted content on a vulnerable browser to exploit the vulnerabilities.

Reports indicate that the remote code execution vulnerability (CVE-2025-6558) is being exploited in the wild. Users are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

Affected Systems:

• Microsoft Edge prior to version 138.0.3351.95

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution or denial of service on an affected system.

Recommendation:

System administrators and users of affected systems should update Microsoft Edge to version 138.0.3351.95 or later to address the issue.

More Information:

• https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#july-16-2025
• https://www.hkcert.org/security-bulletin/microsoft-edge-multiple-vulnerabilities_20250717
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-6558
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-7656 (to CVE-2025-7657)