VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVReported exploited: VulnCheck KEV since Published CVSS 7.8 highEPSS 1.2% probability of exploitation in 30 days
Microsoft

CVE-2021-31969: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of .

VulnCheck KEV lists it since . It cites 1 public report, the first from .

How likely is exploitation in the next 30 days?
1.2%

EPSS score, percentile 68.6 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
7.8 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

  • from 10.0.0 to before 10.0.17763.1999
  • from 10.0.0 to before 10.0.17763.1999
  • from 10.0.0 to before 10.0.17763.1999
  • from 10.0.0 to before 10.0.18363.1621
  • from 10.0.0 to before 10.0.19043.1052
  • from 10.0.0 to before 10.0.19041.1052

and 3 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of ; VulnCheck KEV, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

Description

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability

Source: CVE List, as of . About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Versions by product, as listed in the CVE record (9 products)
Microsoft Windows 10 Version 1809
StatusVersions
Affectedfrom 10.0.0 to before 10.0.17763.1999
Microsoft Windows Server 2019
StatusVersions
Affectedfrom 10.0.0 to before 10.0.17763.1999
Microsoft Windows Server 2019 (Server Core installation)
StatusVersions
Affectedfrom 10.0.0 to before 10.0.17763.1999
Microsoft Windows 10 Version 1909
StatusVersions
Affectedfrom 10.0.0 to before 10.0.18363.1621
Microsoft Windows 10 Version 21H1
StatusVersions
Affectedfrom 10.0.0 to before 10.0.19043.1052
Microsoft Windows 10 Version 2004
StatusVersions
Affectedfrom 10.0.0 to before 10.0.19041.1052
Microsoft Windows Server version 2004
StatusVersions
Affectedfrom 10.0.0 to before 10.0.19041.1052
Microsoft Windows 10 Version 20H2
StatusVersions
Affectedfrom 10.0.0 to before 10.0.19042.1052
Microsoft Windows Server version 20H2
StatusVersions
Affectedfrom 10.0.0 to before 10.0.19042.1052

Source: CVE List, as of . About the data.

Timeline

DateEvent
CVE record published
CVE record last updated

References

2

Known exploited Microsoft vulnerabilities

  • CVE-2026-96951: Microsoft Windows Command Injection Vulnerability (added )
  • CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability (added )
  • CVE-2026-81963: Microsoft Windows Link Following Vulnerability (added )
  • CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability (added )
  • CVE-2019-1068: Microsoft SQL Server Remote Code Execution Vulnerability (added )