Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

published 2020-12-09 5y ago modified 2026-06-17 4mo ago also EUVD-2020-9088

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

Patch / fix

links 2

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Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

Microsoft Windows 10 Version 1803
Microsoft Windows 10 Version 1809
Microsoft Windows 10 Version 1903 for 32-bit Systems
Microsoft Windows 10 Version 1903 for ARM64-based Systems
Microsoft Windows 10 Version 1903 for x64-based Systems
Microsoft Windows 10 Version 1909
Microsoft Windows 10 Version 2004
Microsoft Windows 10 Version 20H2
Microsoft Windows Server 2019
Microsoft Windows Server 2019 (Server Core installation)
Microsoft Windows Server version 2004
Microsoft Windows Server version 20H2
Microsoft Windows Server, version 1903 (Server Core installation)
Microsoft Windows Server, version 1909 (Server Core installation)

References

msrc.microsoft.com /update-guide/vulnerability/CVE-2020-17134
vendor-advisory, patch
portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2020-17134
patch, vendor-advisory

Sources

CVE List CVE-2020-17134
NVD CVE-2020-17134

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