CVE-2025-64667

Microsoft Exchange Server Spoofing Vulnerability

State
Published
Severity
5.3 Medium
Published
Dec 9, 2025
Updated
Apr 16, 2026
Reserved
Nov 6, 2025

Read the record on cve.org

Description

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

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:Cmicrosoft

Weaknesses

  • CWE-451 User Interface (UI) Misrepresentation of Critical Information

Affected Products

ProductVersions
Microsoft Exchange Server 2016 Cumulative Update 23Microsoft
  • 15.01.0.0 to before 15.01.2507.063Affected
Microsoft Exchange Server 2019 Cumulative Update 14Microsoft
  • 15.02.0.0 to before 15.02.1544.037Affected
Microsoft Exchange Server 2019 Cumulative Update 15Microsoft
  • 15.02.0.0 to before 15.02.1748.042Affected
Microsoft Exchange Server Subscription Edition RTMMicrosoft
  • 15.02.0.0 to before 15.02.2562.035Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.