Oct 2025: Microsoft Exchange Server Elevation of Privilege Vulnerability
CVE-2025-59249 Published on October 14, 2025
Microsoft Exchange Server Elevation of Privilege Vulnerability
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.
Weakness Type
CWE-1390
Products Associated with CVE-2025-59249
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Affected Versions
Microsoft Exchange Server 2016 Cumulative Update 23:- Version 15.01.0.0 and below 15.01.2507.061 is affected.
- Version 15.02.0.0 and below 15.02.1544.036 is affected.
- Version 15.02.0.0 and below 15.02.1748.039 is affected.
- Version 15.02.0.0 and below 15.02.2562.029 is affected.
Exploit Probability
EPSS
0.15%
Percentile
36.04%
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.