CVE-2022-24521

Microsoft Windows — Microsoft Windows CLFS Driver Privilege Escalation Vulnerability
⚠️ CVSS 3.1  7.8 / 10 — HIGH 🔴 CISA Known Exploited Vulnerability

Overview

Microsoft Windows Common Log File System (CLFS) Driver contains an unspecified vulnerability that allows for privilege escalation.

https://nvd.nist.gov/vuln/detail/CVE-2022-24521

Key Details

PropertyValue
CVE ID CVE-2022-24521
Vendor / Product Microsoft — Windows
NVD Published2022-04-15
NVD Last Modified2025-10-30
CVSS 3.1 Score7.8
CVSS 3.1 VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SeverityHIGH
CISA KEV Added2022-04-13
CISA KEV Deadline2022-05-04
Known Ransomware Use ⚠️ Yes

CVSS 3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Required Action

CISA BOD 22-01 Deadline: 2022-05-04. Apply updates per vendor instructions.

Timeline

DateEvent
2022-04-13Added to CISA Known Exploited Vulnerabilities catalog
2022-05-04CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2022-24521 Vulnerability Database
CISA KEV Catalog Entry US Government