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MicrosoftCVE-2026-62713

Microsoft Windows Cloud Files Mini Filter Driver: heap buffer overflow

High7.8CVE-2026-62713 · Published Aug 11, 2026 · updated Aug 16, 2026

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

Microsoft advisory

Affected versions

PackageAffectedFixed in
Windows 10 Version 1809
Product
>= 10.0.17763.0, < 10.0.17763.912110.0.17763.9121
Windows 10 Version 21H2
Product
>= 10.0.19044.0, < 10.0.19044.766310.0.19044.7663
Windows 10 Version 22H2
Product
>= 10.0.19045.0, < 10.0.19045.766310.0.19045.7663
Windows 11 Version 23H2
Product
>= 10.0.22631.0, < 10.0.22631.751710.0.22631.7517
Windows 11 Version 24H2
Product
>= 10.0.26100.0, < 10.0.26100.916810.0.26100.9168
Windows 11 Version 25H2
Product
>= 10.0.26200.0, < 10.0.26200.916810.0.26200.9168
Windows 11 version 23H2
Product
>= 10.0.22631.0, < 10.0.22631.751710.0.22631.7517
Windows 11 version 26H1
Product
>= 10.0.28000.0, < 10.0.28000.270410.0.28000.2704
Windows Server 2019
Product
>= 10.0.17763.0, < 10.0.17763.912110.0.17763.9121
Windows Server 2019 (Server Core installation)
Product
>= 10.0.17763.0, < 10.0.17763.912110.0.17763.9121
Windows Server 2022
Product
>= 10.0.20348.0, < 10.0.20348.549910.0.20348.5499
Windows Server 2025
Product
>= 10.0.26100.0, < 10.0.26100.3329610.0.26100.33296
Details and references
CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-122

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