Main Vulnerability Database Vulnerabilities #VU137534

Command Injection in Microsoft 365 Copilot for iOS and Microsoft 365 Copilot for Android - CVE-2026-48561

Published: July 14, 2026

Vulnerability identifier: #VU137534

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-48561

CWE-ID: CWE-77

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary commands on the system.

The vulnerability exists due to insufficient input validation in Microsoft Copilot. A remote attacker can host a malicious website and execute arbitrary commands on the target system.

Affected software

Microsoft 365 Copilot for iOS
Microsoft 365 Copilot for Android

How to mitigate CVE-2026-48561

Install updates from vendor's website.

External References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48561

Related Security Bulletins