KB5122878：Windows 10 21H2 版 / Windows 10 22H2 版安全更新（2026 年 9 月）

版本 1.5

Sep 16, 2026, 12:20 AM

CISA reference
CVSS metrics ("CVSSv2 score" set to 6.8)
CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C")
CVSSv2 score source (changed from "CVE-2026-69431" to "CVE-2026-77503")
CVSSv2 severity (based on CVE-2026-77503, severity decreased from "High" to "Medium")
CVSSv3 score source (changed from "CVE-2026-77503" to none)