CVE-2026-32216
Medium CVSS 5.5Published 2026-04-14 ยท last changed 2026-06-17
The fix
Microsoft fixes this in updateKB5083768. The fixed build differs per Windows version, so the row that matters is the one matching the machine you are looking at.
| Windows version | Fixed in build | Update | Released |
|---|---|---|---|
| Windows 11 Version 26H1 for ARM64-based Systems | 10.0.28000.1836 | KB5083768 | 2026-09-20 |
| Windows 11 version 26H1 for x64-based Systems | 10.0.28000.1836 | KB5083768 | 2026-09-20 |
Having the KB is not the same as knowing whether a machine has it. Windows updates supersede each other, so the update you installed often covers a fix that shipped in an earlier one. Paste your build into the patch checker and it walks that chain for you.
What it is
Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
Sources
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H