CVE-2026-21527

—

CVSS 3.1

6.5 medium

EPSS

8%p94

Published

Feb 10, 2026 (Feb 10, 2026)

Modified

Jun 17, 2026

Description

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

Vendors: microsoft
Products: exchange server, exchange server subscription edition
Weakness: CWE-345, CWE-451, CWE-1286
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (8.0%)

In the news0 stories

No ingested article mentions this CVE yet.