CVE-2026-55145
Outlook Copilot Tampering Vulnerability
CVSS Score
6.3
EPSS Score
0.0%
EPSS Percentile
0th
Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network.
| Vendor | microsoft |
| Product | microsoft copilot |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jul 14, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/E:P/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Microsoft Copilot
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