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Vulnerability Intelligence

CVE-2024-49138

HighExploitedPublic exploit

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Published Dec 10, 2024 · Updated Jun 9, 2026

Key Facts

Patch immediately
  • CVE-2024-49138 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft), Windows 10 1809 (Microsoft) and 22 more products.
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 10, 2024. Public exploit code is available.
  • EPSS estimates a 26% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Windows 10 1507 10.0.10240.20857, Windows 10 1607 10.0.14393.7606, Windows 10 1809 10.0.17763.6659.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.8

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

26%

Higher than 97.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2024-49138 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVDec 10, 2024Dec 31, 2024Not reported
Industry KEV feedDec 10, 2024Dec 31, 2024Not reported
CIRCL KEVDec 10, 2024Dec 31, 2024Not reported
ENISA EUVDDec 10, 2024n/aNot reported

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Products

54 affected entries in total
ProductAffected versionsFixed in
Windows 10 1507MicrosoftSee advisory10.0.10240.20857
Windows 10 1607MicrosoftSee advisory10.0.14393.7606
Windows 10 1809MicrosoftSee advisory10.0.17763.6659
Windows 10 21h2MicrosoftSee advisory10.0.19044.5247
Windows 10 22h2MicrosoftSee advisory10.0.19045.5247
20 more affected products in the full CVE brief

Patched Releases

Windows 10 1507

10.0.10240.20857

Windows 10 1607

10.0.14393.7606

Windows 10 1809

10.0.17763.6659

Windows 10 21h2

10.0.19044.5247

Windows 10 22h2

10.0.19045.5247

Windows 11 22h2

10.0.22621.4602

Windows 11 23h2

10.0.22631.4602

Windows 11 24h2

10.0.26100.2605

Windows Server 2016

10.0.14393.7606

Windows Server 2019

10.0.17763.6659

Windows Server 2022

10.0.20348.2966

Windows Server 2022 23h2

10.0.25398.1308

Windows Server 2025

10.0.26100.2605

Windows 10 Version 1507

10.0.10240.20857

Windows 10 Version 1607

10.0.14393.7606

Windows 10 Version 1809

10.0.17763.6659

Windows 10 Version 21H2

10.0.19044.5247

Windows 10 Version 22H2

10.0.19045.5247

Windows 11 version 22H2

10.0.22621.4602

Windows 11 version 22H3

10.0.22631.4602

Windows 11 Version 23H2

10.0.22631.4602

Windows 11 Version 24H2

10.0.26100.2605

Windows Server 2008 Service Pack 2

6.0.6003.23016

Windows Server 2008 R2 Service Pack 1

6.1.7601.27467

Windows Server 2008 R2 Service Pack 1 (Server Core installation)

6.1.7601.27467

Timeline

  1. Publicly disclosed

    Dec 10, 2024

  2. Added to CISA KEV

    Dec 10, 2024

  3. Added to Industry KEV feed

    Dec 10, 2024

  4. Added to CIRCL KEV

    Dec 10, 2024

  5. Added to ENISA EUVD

    Dec 10, 2024

  6. Last updated

    Jun 9, 2026

Weakness Type

  • CWE-122 Heap-based Buffer Overflow

References

7 more references in the full CVE brief

FAQ

Common Questions.

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