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Multiple Vulnerabilities in Microsoft Edge 

Indian – Computer Emergency Response Team (https://www.cert-in.org.in)

Severity Rating: HIGH

Software Affected

Microsoft Edge version prior to 140.0.3485.66

Overview

Multiple vulnerabilities have been reported in Microsoft Edge, which could allow a remote attacker to bypass security restrictions and execute arbitrary code on the targeted system.

Target Audience:

All end-user organizations and individuals using Microsoft Edge.

Risk Assessment:

High risk of unauthorized access to data and system compromise.

Impact Assessment:

Service disruption and remote code execution.

Description

Microsoft Edge (Chromium-based) is a web browser developed by Microsoft using the Chromium engine, offering fast performance, enhanced security, and compatibility with modern web standards while integrating with Microsoft services.

Multiple vulnerabilities exist in Microsoft Edge due to Use after free in Serviceworker and Inappropriate implementation in Mojo. A remote attacker could exploit these vulnerabilities by persuading a victim to visit a specially crafted website.

Successful exploitation of these vulnerabilities could allow a remote attacker to bypass security restrictions and execute arbitrary code on the targeted system.

Solution

Apply appropriate updates as mentioned in:

https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-security#september-11-2025

References

Microsoft

https://learn.microsoft.com/en-us/deployedge/microsoft-edge-relnotes-security#september-11-2025

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-10200

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-10201

CVE Name

CVE-2025-10200

CVE-2025-10201

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Thanks and Regards,

CERT-In

Incident Response Help Desk

e-mail: incident@cert-in.org.in

Phone: +91-11-22902657

Toll Free Number: 1800-11-4949

Toll Free Fax : 1800-11-6969

Web: http://www.cert-in.org.in

PGP Fingerprint: A768 083E 4475 5725 B81A A379 2156 C0C0 B620 D0B4

PGP Key information:

https://www.cert-in.org.in/s2cMainServlet?pageid=CONTACTUS

Postal address:

Indian Computer Emergency Response Team (CERT-In)

Ministry of Electronics and Information Technology

Government of India

Electronics Niketan

6, C.G.O. Complex

New Delhi-110 003

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