CVE-2026-55145
Outlook Copilot Tampering Vulnerability
- State
- Published
- Severity
- 6.3 Medium
- Published
- Jul 14, 2026
- Updated
- Nov 1, 2026
- Reserved
- Jun 16, 2026
Description
Improper neutralization of special elements used in a command ('command injection') in Outlook Copilot allows an authorized attacker to perform tampering over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.3 Medium | 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 | microsoft |
Weaknesses
- CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products
| Product | Versions |
|---|---|
Microsoft CopilotMicrosoft |
|
References
- Outlook Copilot Tampering Vulnerabilityvendor-advisorypatch
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