KB5078885: Windows 10 version 21H2 / Windows 10 Version 22H2 Security Update (March 2026)

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Version 1.5 Mar 31, 2026, 10:50 AM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") Exploit attributes ("Exploit available" set to "True") Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202603311050
Version 1.4 Mar 17, 2026, 4:16 PM CVSS metrics ("CVSSv3 score" set to 4.8) CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N") CVSSv3 score source (changed from "CVE-2026-25188" to "CVE-2026-24297") CVSSv3 severity (based on CVE-2026-24297, severity decreased from "High" to "Medium") Plugin Feed: 202603171616
Version 1.3 Mar 13, 2026, 8:16 PM Plugin metadata (Add IAVM info) Plugin Feed: 202603132016
Version 1.2 Mar 13, 2026, 12:55 AM Detection (fixed FN on 19044/45 builds) Plugin Feed: 202603130055
Version 1.1 Mar 10, 2026, 10:49 PM New Plugin Feed: 202603102249

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