CVE-2026-58617 json
M365 Copilot for iOS Elevation of Privilege Vulnerability
published 2026-07-14 3 mo ago modified 2026-11-01 7 d ago also EUVD-2026-44305
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.
Patch / fix
- Microsoft Microsoft 365 Copilot for iOS 2.111.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 mo ago
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | 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 |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Microsoft 365 Copilot for iOS
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-58617
vendor-advisory, patch
Sources
- CVE List CVE-2026-58617
- NVD CVE-2026-58617
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