Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability

Microsoft Windows Kernel contains an exposed IOCTL with insufficient access control vulnerability within the IOCTL (input and output control) dispatcher in appid.sys that allows a local attacker to achieve privilege escalation.

Published 23 Sep 2026Updated 23 Sep 20261277 sources
CVSS 7.8 ✓ VERIFIED REFERENCE△ CISA KEV

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