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CVE-2024-49138

KEVMicrosoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability

Microsoft Windows Common Log File System (CLFS) driver contains a heap-based buffer overflow vulnerability that allows a local attacker to escalate privileges.

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS 3.1 vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
PublishedDec 12, 2024
Last modifiedJun 17, 2026
Added to KEVDec 10, 2024
Remediation dueDec 31, 2024
    72
    Risk assessment · High

    Actively exploited. Patch immediately.

    Exploitation
    Confirmed in the wild (CISA KEV)
    Federal remediation deadline
    Overdue by 664 days
    CVSS
    7.8 HIGH
    EPSS (30-day exploit probability)
    26.2% · top 2% of all CVEs
    Weakness
    CWE-122
    1. 1.Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    2. 2.Treat as emergency change: patch or isolate internet-facing instances first.
    3. 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

    Assessment is derived automatically from the live signals above; verify against your own asset inventory.