CVE-2026-58617CWE-284

M365 Copilot for iOS Elevation of Privilege Vulnerability

High · published July 14, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
55.7
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00787 · 55.7th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-07-14T17:10Z
EPSS history
Timeline
  • 14 JUL 17:10Z
    M365 Copilot for iOS Elevation of Privilege Vulnerability
    cvelistv5