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Microsoft 365 Copilot Spoofing Vulnerability

Vulnerability

A spoofing vulnerability has been identified in Microsoft 365 Copilot's Business Chat. This vulnerability allows for improper neutralization of special elements used in a command, potentially leading to command injection. It has a high confidentiality impact, while integrity and availability impacts are negligible.

Impact

Exploitation of this vulnerability could lead to spoofing, allowing an attacker to impersonate another user or entity.

Added: Oct 9, 2025, 9:23 PM
Updated: Oct 9, 2025, 9:23 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
1.3
exploitability
6.4
remediation
0.0
relevance
0.7
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.