Security Advisory

CVE-2026-56191

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-24 00:01:12
Last updated 2026-07-25 03:55:27
Assigner microsoft
CVSS score 10.0
State PUBLISHED

Description

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