🛡 CVE-2024-21338
Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability
Microsoft Windows CWE-822
Ransomware use
KNOWN
CISA KEV
EPSS
59.8%
Likely exploited · 99th pct
Added to KEV
2024-03-04
CISA
Remediate by
2024-03-25
⚠ OVERDUE
CWE
CWE-822
weakness
📈 EPSS exploit probability
59.8%
FIRST EPSS — 30-day probability of exploitation in the wild · band Likely exploited · higher than 99% of all scored CVEs
⚠ KEV remediation overdue
CISA required federal remediation by 2024-03-25. This exploited vulnerability is past its Binding Operational Directive 22-01 due date — prioritize patch/mitigation and hunt for exploitation.
📄 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.
🏹 Attributed exploitation
Malware / ransomware (KEV): ransomware (KEV-flagged)
🔗 External references & OSINT
🔄 Internal pivots & actions
🛡 Add to case
🧩 Advanced Capabilities
Workstation · Copilot · AI Skills · Automation · Playbooks · Lookups · Docs · Reports
🤖 AI Copilot
⚡ AI Skills
🔍 Lookup & Enrich
📚 Docs & Reports
💡 Recommendations
- Explore related tools below
- Automate recurring work via cron