CVE-2026-55946

Published: Sep 17, 2026Modified: Sep 19, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Exploitability: 1.6 / Impact: 4.0

Source: secure@microsoft.com (Secondary)

Description

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

Related CWEs

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55946

Source: secure@microsoft.com

Timeline

No history available yet.