Multiple vulnerabilities in Microsoft Apps

Description

Multiple vulnerabilities were found in Microsoft Apps. Malicious users can exploit these vulnerabilities to spoof user interface, gain privileges, obtain sensitive information, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. A tampering vulnerability in Microsoft Copilot can be exploited remotely to spoof user interface.
2. An elevation of privilege vulnerability in Microsoft 365 Copilot’s Business Chat can be exploited remotely to gain privileges.
3. An information disclosure vulnerability in M365 Copilot can be exploited remotely to obtain sensitive information.

Original advisories

• CVE-2026-42895

• CVE-2026-47645
• CVE-2026-54130

Exploitation

Related products

• Microsoft-365

CVE list

• CVE-2026-54130
  critical
• CVE-2026-42895
  critical
• CVE-2026-47645
  critical

Read more

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