CVE-2025-64667

Medium

Description

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

SeverityMedium
CVSS5.3
Exploit probability57. percentile0.8%
ProductMicrosoft Exchange Server
PublishedDec 9, 2025
First seenDec 9, 2025
Weakness typeCWE-451CWE-451

How to fix

Update
  • microsoft exchange_server_subscription_edition15.02.2562.035 or later

Affected products

ProductAffected versionsFixed in
microsoft exchange_server2016, 2019—
microsoft exchange_server_subscription_editionv < 15.02.2562.03515.02.2562.035

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.