CVE-2026-58617
High
Description
Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.
SeverityHigh
CVSS8.1
Exploit probability—
Product
Microsoft 365 Copilot
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- microsoft 365_copilot2.111.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft 365_copilot | v < 2.111.4 | 2.111.4 |
Check your version
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