Privilege escalation via undisclosed access-control failure
Published Jul 14, 2026 · Updated Jul 14, 2026
Improper access control in Microsoft 365 Copilot for iOS before 2.111.4 allows remote attackers to elevate privileges over a network. Microsoft has not published the affected authorization locus or the incorrect operation that permits the privilege change. Exploitation requires user interaction and permits data disclosure or modification, with no reported service interruption.
Summary
What happened
Improper access control in Microsoft 365 Copilot for iOS before 2.111.4 allows remote attackers to elevate privileges over a network. Microsoft has not published the affected authorization locus or the incorrect operation that permits the privilege change. Exploitation requires user interaction and permits data disclosure or modification, with no reported service interruption.
The record
- CVE
- CVE-2026-58617
- Published
- Jul 14, 2026
- Updated
- Jul 14, 2026
- Vendor
- Microsoft
- Product
- Microsoft 365 Copilot app for iOS
- Classifications
- CWE-284
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 14, 2026CVE publishedPublication date reported by the CVE source.
- Jul 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0 <2.111.4
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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