CVE-2026-112803

MEDIUM

Published Nov 10, 2026 Modified Nov 12, 2026 CWE-424 CWE-284

Description

Improper access control in Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0047

Probability of exploitation

0.41%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-424 CWE-424

CWE-284 CWE-284

References

Other References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-112803

Frequently Asked Questions

What is CVE-2026-112803? +

Improper access control in Windows Cloud Files Mini Filter Driver allows an authorized attacker to disclose information locally. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-112803? +

CVE-2026-112803 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0047, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-112803? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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