CVE-2026-56191

CRITICAL

10.0

CVSS Severity Score

EPSS Score0.0000%

EPSS Percentile0.00th

Published2026-07-24

Last Modified2026-07-25

Data SourcesNVD

Vulnerability Description

Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.

No CPE configurations currently published for this record.

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