CVE tracker / CVE-2026-112803

CVE-2026-112803

CVE-2026-112803 is the Windows Cloud Files Mini Filter Driver Information Disclosure Vulnerability. Microsoft rates it Important, CVSS 5.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published November 10, 2026.

Risk summary

MediumInformation Disclosure
5.5
CVSS v3 base
Medium
Severity
Important
Microsoft's rating
Less Likely
Microsoft: exploitation
No
In CISA KEV

Microsoft describes it: “Improper access control in Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally.”

How to fix it

Microsoft lists 24 affected products and the update that fixes each:

What Microsoft changed

Details

Publicly disclosed (Microsoft)
No
Exploited (Microsoft)
No
Known exploited (CISA KEV)
Not listed
Published
November 10, 2026
Last revised
November 10, 2026

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References

Microsoft Security Update Guide NVD CVE record

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.