Aug 2025: Microsoft Exchange Server Spoofing Vulnerability
CVE-2025-25006 Published on August 12, 2025

Microsoft Exchange Server Spoofing Vulnerability
Improper handling of additional special element in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.

Vendor Advisory NVD

Weakness Type

Improper Handling of Additional Special Element

The software receives input from an upstream component, but it does not handle or incorrectly handles when an additional unexpected special element is provided.


Products Associated with CVE-2025-25006

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Affected Versions

Microsoft Exchange Server 2016 Cumulative Update 23: Microsoft Exchange Server 2019 Cumulative Update 14: Microsoft Exchange Server 2019 Cumulative Update 15: Microsoft Exchange Server Subscription Edition RTM:

Exploit Probability

EPSS
0.12%
Percentile
31.14%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.