VULNERABILITY INTELLIGENCE

CVE-2026-54130

CVSS score9.8 CRITICAL
EPSS probability1.08%
CISA KEVNot currently listed
Published2026-06-18
Last modified2026-11-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Description

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

Weakness classification

  • CWE-306: Missing Authentication for Critical Function

Primary references