CVE-2026-21527

medium Microsoft
CVSS v3 Base Score
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
Published: February 10, 2026
Last Modified: March 13, 2026
Vendor: Microsoft
Source: MITRE

Description

User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

CWE

CWE-451

Affected Products

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23Microsoft Microsoft Exchange Server 2019 Cumulative Update 14Microsoft Microsoft Exchange Server 2019 Cumulative Update 15Microsoft Microsoft Exchange Server Subscription Edition RTM

References

🔗 msrc.microsoft.com