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Multiple Vulnerabilities in Microsoft Products

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

Severity Rating: HIGH

Software Affected

Microsoft Graph

Microsoft Copilot

Microsoft 365 Copilot

Copilot Chat (Microsoft Edge)

Microsoft Cloud

Overview

Multiple vulnerabilities have been reported in Microsoft products and cloud services which could allow attackers to execute arbitrary code, disclose sensitive information, bypass security controls, elevate privileges, or compromise affected services.

Target Audience:

All organizations and individuals using affected Microsoft products and cloud services.

Risk Assessment:

High risk due to the potential for remote code execution, information disclosure, privilege escalation, unauthorized access, and compromise of cloud-based services.

Impact Assessment:

Data exposure, service compromise, unauthorized privilege escalation, remote code execution and compromise of affected services.

Description

These vulnerabilities exist in Microsoft products and cloud services due to improper authorization, command injection flaws, and insufficient neutralization of special elements used in commands.

Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, elevate privileges, disclose sensitive information and compromise of cloud based services on the affected systems.

Solution

Apply appropriate updates as mentioned by the vendor:

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48579

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47655

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47644

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45497

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48567

Vendor Information

Microsoft

https://www.microsoft.com/en-in/

References

 

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48579

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47655

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47644

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45497

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48567

CVE Name

CVE-2026-42824

CVE-2026-45497

CVE-2026-47655

CVE-2026-47644

CVE-2026-48567

CVE-2026-48579

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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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