cve 2026 27926

CVE-2026-27926 is a Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability tracked by Microsoft in its Security Update Guide. The vulnerability affects the Cloud Files mini filter driver, a kernel-adjacent component, and Microsoft has signaled confidence in the flaw's existence. This means defenders should treat it as a real, vendor-tracked issue rather than speculative research. The pattern is consistent with prior Windows EoP disclosures where such bugs can be exploited quickly. Users are advised to apply security updates promptly to mitigate risk.