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Description of the security update for Microsoft Exchange Server 2016 CU23: October 14, 2025 (KB5066369)

🗓️ 14 Oct 2025 14:00:00Reported by MicrosoftType 
mskb
 mskb
🔗 support.microsoft.com👁 10 Views

Security update for Exchange Server 2016 CU23 fixes three vulnerabilities and disables cert export.

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14 Oct 2025 14:00Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.8 - 8.8
EPSS0.00172
SSVC
10