PT-2026-46402 · Microsoft · M365 Copilot

Guillermo Diaz + 2 · Published 2026-06-04 · Updated 2026-06-04 · CVE-2026-45497

Mitre

CVSS v3.1

7.7

High

Base vector

AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an authorized attacker to execute code over a network.

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2026-45497

Affected Products

M365 Copilot

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45497 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-45497 · Security Note