⚠ Actively exploited
Added to CISA KEV on 2024-12-10. Federal agencies required to patch by 2024-12-31. Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable..

CVE-2024-49138 — Heap-based Buffer Overflow in Microsoft Windows 10 Version 1507

CWE-122 — Heap-based Buffer Overflow20 documents14 sources
Severity
7.8HIGHNVD
EPSS
85.8%
top 0.62%
CISA KEV
KEV
Added 2024-12-10
Due 2024-12-31
Exploit
Exploited in wild
Active exploitation observed
Affected products
27
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+24 more
Timeline
KEV addedDec 10
PublishedDec 12
KEV dueDec 31
Latest updateMay 13
CISA Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages26 packages

▶NVDmicrosoft/windows< 10.0.14393.7606+6
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20857
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7606
▶NVDmicrosoft/windows_10_1809< 10.0.17763.6659
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.5247

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-h4hx-5g7m-p3hc: Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2024-12-12
▶
CVEList
Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2024-12-10
▶
VulnCheck
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability↗2024
▶

💥Exploits & PoCs

1
Exploit-DB
Microsoft Windows 11 23h2 - CLFS.sys Elevation of Privilege↗2025-04-22
▶

📋Vendor Advisories

2
CISA
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability↗2024-12-10
▶
Microsoft
Windows Common Log File System Driver Elevation of Privilege Vulnerability↗2024-12-10
▶

🕵️Threat Intelligence

13
Tenable
Microsoft’s May 2025 Patch Tuesday Addresses 71 CVEs (CVE-2025-32701, CVE-2025-32706, CVE-2025-30400)↗2025-05-13
▶
Tenable
Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824)↗2025-04-08
▶
Tenable
Cybersecurity Snapshot: CISA Calls for Stamping Out Buffer Overflow Vulnerabilities, as Europol Tells Banks To Prep For Quantum Threat↗2025-02-14
▶
Krebs
Patch Tuesday, December 2024 Edition↗2024-12-11
▶
Krebs
Patch Tuesday, December 2024 Edition↗2024-12-11
▶
CVE-2024-49138 — Heap-based Buffer Overflow | cvebase