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CVE-2024-49138

85
FAUCET Score

CVE-2024-49138 is an Elevation of Privilege vulnerability affecting the Windows Common Log File System (CLFS) Driver across Microsoft Windows products. This high-severity flaw, rated 7.8 CVSS, allows a local attacker with low privileges to gain full control over the system, leading to high confidentiality, integrity, and availability impacts. Critically, this vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog, with public exploit code available on ExploitDB. The significant community discussion and media coverage underscore the urgency of patching this critical flaw.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.10240.20857CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
< 10.0.10240.20857CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*
< 10.0.14393.7606CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
< 10.0.14393.7606CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
< 10.0.17763.6659CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
25.41%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Dec 10, 2024
ExploitDB: EDB-52270 · Apr 22, 2025
This CVE's current EPSS score of 0.2541 is in the 100th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (44)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for 32-bit SystemsFixed in: 10.0.17763.6659
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1809 for x64-based SystemsFixed in: 10.0.17763.6659
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019Fixed in: 10.0.17763.6659
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2019 (Server Core installation)Fixed in: 10.0.17763.6659
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022Fixed in: 10.0.20348.2966
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022 (Server Core installation)Fixed in: 10.0.20348.2966
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022Fixed in: 10.0.20348.2908
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022 (Server Core installation)Fixed in: 10.0.20348.2908
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for 32-bit SystemsFixed in: 10.0.19044.5247
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for ARM64-based SystemsFixed in: 10.0.19044.5247
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 21H2 for x64-based SystemsFixed in: 10.0.19044.5247
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for ARM64-based SystemsFixed in: 10.0.22621.4602
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for x64-based SystemsFixed in: 10.0.22621.4602
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for x64-based SystemsFixed in: 10.0.19045.5247
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for ARM64-based SystemsFixed in: 10.0.19045.5247
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 22H2 for 32-bit SystemsFixed in: 10.0.19045.5247
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2025 (Server Core installation)Fixed in: 10.0.26100.2605
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 24H2 for ARM64-based SystemsFixed in: 10.0.26100.2605
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 24H2 for x64-based SystemsFixed in: 10.0.26100.2605
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2025Fixed in: 10.0.26100.2605
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2025 (Server Core installation)Fixed in: 10.0.26100.2528
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 24H2 for ARM64-based SystemsFixed in: 10.0.26100.2528
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 24H2 for x64-based SystemsFixed in: 10.0.26100.2528
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2025Fixed in: 10.0.26100.2528
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 23H2 for ARM64-based SystemsFixed in: 10.0.22631.4602
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 23H2 for x64-based SystemsFixed in: 10.0.22631.4602
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022, 23H2 Edition (Server Core installation)Fixed in: 10.0.25398.1308
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for 32-bit SystemsFixed in: 10.0.10240.20857
View patch
microsoftpatch availablevia msrc
Product: Windows 10 for x64-based SystemsFixed in: 10.0.10240.20857
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for 32-bit SystemsFixed in: 10.0.14393.7606
View patch
microsoftpatch availablevia msrc
Product: Windows 10 Version 1607 for x64-based SystemsFixed in: 10.0.14393.7606
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016Fixed in: 10.0.14393.7606
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2016 (Server Core installation)Fixed in: 10.0.14393.7606
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2Fixed in: 6.0.6003.23016
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.23016
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2Fixed in: 6.0.6003.23016
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.23016
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1Fixed in: 6.1.7601.27467
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Fixed in: 6.1.7601.27467
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012Fixed in: 6.2.9200.25222
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 (Server Core installation)Fixed in: 6.2.9200.25222
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2Fixed in: 6.3.9600.22318
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2012 R2 (Server Core installation)Fixed in: 6.3.9600.22318
View patch

Vendor Advisories (1)

microsoft2024-Dec/CVE-2024-49138Important

Windows Common Log File System Driver Elevation of Privilege Vulnerability

Dec 10, 2024

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstorm.news / files/id/190585
ExploitVDB Entry
exploit-db.com / exploits/52270
ExploitVDB Entry
msrc.microsoft.com / update-guide/vulnerability/CVE-2024-49138
PatchVendor Advisory