CVE-2026-54130EPSS p64.1%

CVE-2026-54130CVE-2026-54130

microsoft / 365_copilot

Description

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

Scoring

CVSS 9.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS1.08% probability of exploitation · percentile 64.1% · 2026-10-05T12:00:23Z
Last modified2026-06-25
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.