CVE-2026-58617

high Microsoft
CVSS v3 Base Score
8.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS Score
0.7%
Exploitation probability in 30 days
Top 52% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Published: July 14, 2026 (54 days ago)
Last Modified: July 16, 2026
Vendor: Microsoft
Source: NVD

Description

Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.

CWE

CWE-284

Affected Products

microsoft 365 copilot

References

🔗 msrc.microsoft.com