CVE Vulnerabilities

CVE-2026-21527

Insufficient Verification of Data Authenticity

Published: Feb 10, 2026 | Modified: Feb 11, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu
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User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Weakness

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Software

NameVendorStart VersionEnd Version
Exchange_serverMicrosoft*15.02.2562.037 (excluding)
Exchange_serverMicrosoft2016-cumulative_update_23 (including)2016-cumulative_update_23 (including)
Exchange_serverMicrosoft2019-cumulative_update_14 (including)2019-cumulative_update_14 (including)
Exchange_serverMicrosoft2019-cumulative_update_15 (including)2019-cumulative_update_15 (including)

References