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CVE-2026-50374

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

MEDIUM
6.8
CVSS Score
Published: July 14, 2026 at 05:07 PM UTC
Updated: October 28, 2026 at 08:04 PM UTC
9 products affected across 1 vendorWindows Server 2019Windows 10 1809Windows Server 2022

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges with a physical attack.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10 1809· Microsoft
95%
v < 10.0.17763.902010.0.17763.0
Affected range stops below 10.0.17763.9020, so it looks safe — our inference, not a vendor statement
Windows 10 21H2· Microsoft
95%
v < 10.0.19044.754810.0.19044.0
Affected range stops below 10.0.19044.7548, so it looks safe — our inference, not a vendor statement
Windows 10 22H2· Microsoft
95%
v < 10.0.19045.754810.0.19045.0
Affected range stops below 10.0.19045.7548, so it looks safe — our inference, not a vendor statement
Windows 11 24H2· Microsoft
95%
v < 10.0.26100.887510.0.26100.0
Affected range stops below 10.0.26100.8875, so it looks safe — our inference, not a vendor statement
Windows 11 25H2· Microsoft
95%
v < 10.0.26200.887510.0.26200.0
Affected range stops below 10.0.26200.8875, so it looks safe — our inference, not a vendor statement
Windows 11 26H1· Microsoft
95%
v < 10.0.28000.252510.0.28000.0
Affected range stops below 10.0.28000.2525, so it looks safe — our inference, not a vendor statement
Windows Server 2019· Microsoft
95%
v < 10.0.17763.902010.0.17763.0
Affected range stops below 10.0.17763.9020, so it looks safe — our inference, not a vendor statement
Windows Server 2022· Microsoft
95%
v < 10.0.20348.538610.0.20348.0
Affected range stops below 10.0.20348.5386, so it looks safe — our inference, not a vendor statement
Windows Server 2025· Microsoft
95%
v < 10.0.26100.3315810.0.26100.0
Affected range stops below 10.0.26100.33158, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50374

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.8MEDIUM[email protected]
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

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