Microsoft Exchange Server のセキュリティ更新プログラム (2026 年 5 月)

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バージョン 1.5 Oct 20, 2026, 12:55 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:H/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202610201255
バージョン 1.4 Jun 17, 2026, 9:10 AM Logic Changes (added in subscription edition updates) Plugin Feed: 202606170910
バージョン 1.3 Jun 12, 2026, 7:53 PM Plugin metadata (Add IAVM Info) Plugin Feed: 202606121953

* Changelogs are generally available for changes made after Nov 1, 2022