ACTIVELY EXPLOITED
CVE-2022-24521: Microsoft Windows CLFS Driver Privilege Escalation Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Windows |
| Actively exploited | Yes |
| Added to CISA KEV | 13 Apr 2022 |
| CISA federal deadline | 4 May 2022 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-1285, CWE-787 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
Microsoft Windows Common Log File System (CLFS) Driver contains an unspecified vulnerability that allows for privilege escalation.
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.