Improper neutralization of special elements in output used by a downstream component ('injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.

CVE-2026-45584 high · 8.1

Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.

CVE-2026-45498 medium · 4.0

Microsoft Defender Denial of Service Vulnerability

CVE-2026-42834 high · 7.8

Improper link resolution before file access ('link following') in Azure Portal Windows Admin Center allows an authorized attacker to elevate privileges locally.

CVE-2026-41091 high · 7.8

Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.

CVE-2026-45585 medium · 6.8

Microsoft is aware of a security feature bypass vulnerability in Windows publicly referred to as "YellowKey". The proof of concept for this vulnerability has been made pu

CVE-2026-45495 high · 8.8

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability