Lucene search
+L

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👁 44 Views

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

Related
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Microsoft Exchange Server Spoofing
16 Oct 202500:00
–bdu_fstec
bdu_fstec
BDU FSTEC
Microsoft Exchange Server Privilege Escalation
16 Oct 202500:00
–bdu_fstec
bdu_fstec
BDU FSTEC
Microsoft Exchange Server Privilege Escalation
12 Nov 202500:00
–bdu_fstec
circl
Circl
CVE-2025-53782
14 Oct 202516:38
–circl
circl
Circl
CVE-2025-59248
14 Oct 202516:38
–circl
circl
Circl
CVE-2025-59249
14 Oct 202516:38
–circl
cnnvd
CNNVD
Microsoft Exchange Server security vulnerabilities
14 Oct 202500:00
–cnnvd
cnnvd
CNNVD
Microsoft Exchange Server input validation vulnerability
14 Oct 202500:00
–cnnvd
cnnvd
CNNVD
Microsoft Exchange Server security vulnerabilities
14 Oct 202500:00
–cnnvd
cnvd
CNVD
Microsoft Exchange Server Elevation of Privilege Vulnerability (CNVD-2025-26717)
17 Oct 202500:00
–cnvd
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

14 Oct 2025 14:00Current
7.7High risk
Vulners AI Score7.7
CVSS 3.17.8 - 8.8
EPSS0.01019
SSVC
44