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Vulnerability Intelligence

CVE-2026-20857 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-20857

CVE-2026-20857

HIGH7.8

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Published Jan 13, 2026

Modified 6 days ago

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20857

https://www.cve.org/CVERecord?id=CVE-2026-20857

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedJan 13, 2026

ModifiedFeb 26, 2026