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CVE-2026-58617M365 Copilot for iOS Elevation of Privilege Vulnerability
Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.
9.8 CRITICALEPSS 0.78%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1 | HIGH | 3.1microsoft (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| 8.1 | HIGH | 3.1microsoft (CNA) | 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 |
Details
- CVE ID
- CVE-2026-58617
- Status
- Analyzed
- Assigner (CNA)
- microsoft
- Published
- Jul 14, 2026
- Last modified
- 2026-11-01 17:37 UTC
- Weaknesses
- CWE-284 · Improper Access Control
Affected Products
As published by the CNA in the CVE record.
MicrosoftMicrosoft 365 Copilot for iOS1 version range
- 1.0 before 2.111.4