PT-2026-58663 · Microsoft · 365 Copilot For Ios

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-58617

Mitre

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-58617

Affected Products

365 Copilot For Ios

References · 2

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58617 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-58617 · Security Note