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critical CISA KEV Ransomware

CVE-2024-21338

Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability

// Description

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.

// Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Federal remediation due Mar 25, 2024 — past due

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// Coverage