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Description

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

PUBLISHED Reserved 2026-07-01 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

Problem types

CWE-284: Improper Access Control

Product status

1.0 (custom) before 2.111.4
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58617 (M365 Copilot for iOS Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-58617)

nvd.nist.gov (CVE-2026-58617)

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