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CVE-2026-42827
Published: May 22, 2026
Modified: Jun 5, 2026
PUBLISHED
CVSS v3.1
6.5
MEDIUM
Description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Microsoft 365 Copilot | affected - |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
References
M365 Copilot Information Disclosure Vulnerability
vendor-advisory
patch
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