CVE-2026-21527

MEDIUM
2026-02-10 [email protected]
6.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 10, 2026 - 18:16 nvd
MEDIUM 6.5

Tags

Microsoft Exchange Exchange Server

Description

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

Analysis

Microsoft Exchange Server is vulnerable to UI spoofing attacks that allow unauthenticated remote attackers to misrepresent critical information and deceive users. The vulnerability has a CVSS score of 6.5 and currently lacks an available patch, leaving affected systems exposed to social engineering and impersonation attacks. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +32
POC: 0

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CVE-2026-21527 vulnerability details – vuln.today
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