CVE-2026-54130

HighCVSS 7.5/10Last modified Nov 3, 2026

Description

Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-306

Affected software

VendorProductVersions
MicrosoftMicrosoft 365 Copilot-

References

Timeline

Published
Jun 18, 2026
Last modified
Nov 3, 2026
NVD status
Analyzed

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CVE-2026-54130: High severity, CVSS 7.5 | Vulnix