CVE-2026-58617: Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.

PriorityP263critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.72%

49.9th percentile

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

Affected

2 ranges

Vendor	Product	Version range	Fixed in
microsoft	365_copilot	< 2.111.4	2.111.4
microsoft	microsoft_365_copilot_for_ios	>= 1.0 < 2.111.4	2.111.4

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