High Threat Security Alert (A25-09-15): Multiple Vulnerabilities in Microsoft Edge

Description:

Microsoft has released security updates to address multiple 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 an information disclosure vulnerability (CVE-2025-10585) 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 140.0.3485.81

Impact:

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

Recommendation:

System administrators and users of affected systems should update Microsoft Edge to version 140.0.3485.81 or later to address the issue.

More Information:

• https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security#september-19-2025
• https://www.hkcert.org/security-bulletin/microsoft-edge-multiple-vulnerabilities_20250922
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-10500 (to CVE-2025-10502)
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-10585