KB5073457: Windows Server 2022 / Azure Stack HCI 22H2 セキュリティ更新 (2026 年 1 月)

バージョン 1.2

Jan 14, 2026, 5:08 AM

CISA reference
CVSS metrics ("CVSSv2 score" set to 10.0. "CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C")
CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:F/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:F/RL:O/RC:C")
CVSSv2 score source (changed from "CVE-2026-20857" to "CVE-2026-20868")
CVSSv2 severity (based on CVE-2026-20868, severity increased from "Medium" to "High")
New