by Kastro
Paper/Archive/CVE-2026-58617

CVE-2026-58617

Microsoft Microsoft 365 Copilot for iOS — M365 Copilot for iOS Elevation of Privilege Vulnerability

EPSS 0.8%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 56.1.561 × 2011.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
Microsoft 365 Copilot for iOS1.0 – < 2.111.42.111.4CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
microsoft (CNA)8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-58617