Local Privilege Escalation in Microsoft Exchange Server
CVE-2025-53782
8.4HIGH
Key Information:
What is CVE-2025-53782?
An authentication algorithm in Microsoft Exchange Server is incorrectly implemented, allowing unauthorized attackers to escalate their privileges locally. This vulnerability poses significant security risks as it may enable attackers to gain unauthorized access to sensitive data and resources within the server environment.
Affected Version(s)
Microsoft Exchange Server 2016 Cumulative Update 23 x64-based Systems 15.01.0.0 < 15.01.2507.061
Microsoft Exchange Server 2019 Cumulative Update 14 x64-based Systems 15.02.0.0 < 15.02.1544.036
Microsoft Exchange Server 2019 Cumulative Update 15 x64-based Systems 15.02.0.0 < 15.02.1748.039