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TI-2026-42191 Aliases CVE-2026-58617GHSA-fw44-xwgm-pf69

M365 Copilot for iOS Elevation of Privilege Vulnerability

Priority MEDIUM 44CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00787 56th percentileScored 2026-11-07
Fix Fixed Microsoft 365 Copilot for iOS (Microsoft): 2.111.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft 365 Copilot for iOS1.0 to before 2.111.42.111.4Patch availableCNA
  • Microsoft 365 Copilot for iOS VendorMicrosoft Affected 1.0 to before 2.111.4 Fixed in 2.111.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:iphone_os:*:*before 2.111.4VulnerableMicrosoft
  • cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:iphone_os:*:* Versions before 2.111.4 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft 365 Copilot for iOS (Microsoft) Fixed in 2.111.4

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft 365 Copilot for iOSFixed 2.111.4 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58617
  2. 2026-10-03 Alias added: GHSA-fw44-xwgm-pf69

References

Patch 1

  • TI-2025-37796 GDI+ Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2025-23775 M365 Copilot Information Disclosure Vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2025-33667 GDI+ Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2021-19684 Microsoft Office app Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.6
  • TI-2026-37251 Microsoft M365 Copilot Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2026-39054 M365 Copilot Information Disclosure Vulnerability CVSS 3.1CRITICAL 9.8
See all 54 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences