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CVE-2023-36904: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-08 · updated 2026-08-10
• Weakness: CWE-126

Description

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10: before 10.0.17763.4737 — fixed in 10.0.17763.4737
• Microsoft Windows 10: before 10.0.19044.3324 — fixed in 10.0.19044.3324
• Microsoft Windows 10: before 10.0.19045.3324 — fixed in 10.0.19045.3324
• Microsoft Windows 11 21H2: before 10.0.22000.2295 — fixed in 10.0.22000.2295
• Microsoft Windows 11: before 10.0.22621.2134 — fixed in 10.0.22621.2134
• Microsoft Windows Server 2019: all versions
• Microsoft Windows Server 2022: all versions
• Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.4737 — fixed in 10.0.17763.4737
• Microsoft Windows 10: from 10.0.19044.0 before 10.0.19044.3324 — fixed in 10.0.19044.3324
• Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.3324 — fixed in 10.0.19045.3324
• Microsoft Windows 11 21H2: from 10.0.22000.0 before 10.0.22000.2295 — fixed in 10.0.22000.2295
• Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.2134 — fixed in 10.0.22621.2134
• Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.4737 — fixed in 10.0.17763.4737
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.1906 — fixed in 10.0.20348.1906

How to fix

Upgrade to a fixed version: Microsoft Windows 10 10.0.17763.4737; Microsoft Windows 10 10.0.19044.3324; Microsoft Windows 10 10.0.19045.3324; Microsoft Windows 11 21H2 10.0.22000.2295; Microsoft Windows 11 10.0.22621.2134; Microsoft Windows 10 10.0.17763.4737; Microsoft Windows 10 10.0.19044.3324; Microsoft Windows 10 10.0.19045.3324; Microsoft Windows 11 21H2 10.0.22000.2295; Microsoft Windows 11 10.0.22621.2134; Microsoft Windows Server 2019 10.0.17763.4737; Microsoft Windows Server 2022 10.0.20348.1906. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36904
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36904

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