PT-2025-50199 · Microsoft · Exchange Server

Published 2025-12-09 · Updated 2026-06-16 · CVE-2025-64667

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Exchange Server (affected versions not specified)

Description A flaw in Microsoft Exchange Server’s user interface (UI) can lead to the misrepresentation of critical information. This allows an unauthorized attacker to perform spoofing attacks over a network. The issue enables attackers to affect the system through spoofing.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

UI Misrepresentation of Critical Information

Weakness Enumeration

CWE-451

Related Identifiers

BDU:2025-15497

CVE-2025-64667

Affected Products

Exchange Server

References · 7

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64667 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-64667 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-64667 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-64667 · Security Note
• https://bdu.fstec.ru/vul/2025-15497 · Security Note
• https://t.me/cveNotify/167468 · Telegram Post
• https://twitter.com/CVEnew/status/1998781363860709377 · Twitter Post