CVE-2026-54130
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Jun 18, 2026
Vendor
unknown
Description
Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.