CVE-2024-21338 — Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability
Severity: Critical · Kind: Vulnerability
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From the source
Microsoft Windows. 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.
Vulnerability facts
- CVE
- CVE-2024-21338
- On CISA KEV since
- 2024-03-04
- Ransomware use
- Known
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