Forwarded by Taiwan Computer Network Crisis and Coordination Center (TWCERTCC-200-202510-00000009)

[Description]
Microsoft has released a critical security vulnerability advisory (CVE-2025-59249, CVSS: 8.8) for its Exchange Server product. This vulnerability, a weak authentication vulnerability, allows an authenticated attacker to escalate privileges over the network.

[Affected Platforms]
● Microsoft Exchange Server Subscription Edition RTM
● Microsoft Exchange Server 2019 Cumulative Update 15
● Microsoft Exchange Server 2019 Cumulative Update 14
● Microsoft Exchange Server 2016 Cumulative Update 23

[Recommended Action]
Patch according to the workaround released on the official website: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59249

[References]
https://www.twcert.org.tw/tw/cp-169-10447-4a433-1.html