CVE-2026-42895: Microsoft 365 Copilot

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

Affected products

• Microsoft 365 Copilot: affected versions not specified

Published 2026-06-19. Last modified 2026-06-26.