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CVE-2024-49138

Critical Severity
SVRS
74/100

CVSSv3
7.8/10

EPSS
0.86303/1

CVE-2024-49138 is a critical elevation of privilege vulnerability in the Windows Common Log File System (CLFS) driver. This security flaw allows an attacker to gain higher-level access to a system than they are authorized for. SOCRadar's Vulnerability Risk Score (SVRS) of 74 highlights the elevated risk, indicating significant potential for exploitation, especially as active exploits are known to exist. While below the critical threshold of 80, the "In The Wild," "Exploit Available," "vendor-advisory," and "CISA KEV" tags further emphasize the urgency for patching. Successful exploitation could lead to complete system compromise, allowing attackers to execute arbitrary code and potentially gain full control over affected Windows systems. Organizations should prioritize patching this vulnerability to mitigate the risks of unauthorized access and control.

In The Wild
Exploit Avaliable
Vendor-advisory
CISA KEV
CVSS:3.1
AV:L
AC:L
PR:L
UI:N
S:U
C:H
I:H
A:H
E:U
RL:O
RC:C
2025-03-11

2024-12-10
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SOCRadar
AI Insight

Description

Unfortunately, the provided CVE data is incomplete and lacks crucial information, such as the CVSS score, description, and SVRS score. Without these details, it's impossible to offer a comprehensive analysis, highlight the urgency, or provide accurate key insights.

Key Insights

Since the CVE data is insufficient, we cannot provide key insights. A complete CVE analysis would typically cover:

  • Impact: The potential consequences of exploiting the vulnerability, including data breaches, system compromise, and denial-of-service.
  • Affected Systems: The specific software, operating systems, or devices vulnerable to the exploit.
  • Exploitation Techniques: The methods used to exploit the vulnerability, such as malicious code injection, buffer overflows, or remote code execution.
  • Threat Actors: Identification of known threat actors or APT groups actively targeting this vulnerability.
  • Exploit Status: Whether exploits have been published or are being used in the wild.
  • CISA Warnings: If CISA has issued a warning or advisory regarding the vulnerability.

Mitigation Strategies

Without a proper understanding of the CVE's nature and severity, it's impossible to offer specific mitigation strategies. However, in general, these actions can help enhance cybersecurity posture:

  • Patching and Updating: Regularly update software and operating systems with the latest security patches to address vulnerabilities.
  • Network Segmentation: Isolate critical systems and data to limit the impact of a successful attack.
  • Security Awareness Training: Educate users on common phishing techniques and social engineering tactics to prevent them from falling victim to attacks.
  • Multi-Factor Authentication (MFA): Implement MFA for all user accounts to add an extra layer of security and prevent unauthorized access.

Additional Information

If you have further questions or need more information regarding this CVE, you can use the 'Ask to Analyst' feature, contact SOCRadar directly, or open a support ticket.

Indicators of Compromise

TypeIndicatorDate
HASH
7bdbd180c081fa63ca94f9c22c4573762024-12-13
HASH
8c69830a50fb85d8a794fa46643493b22024-12-13
HASH
bbcf7a68f4164a9f5f5cb2d9f30d97902024-12-13
HASH
a90f871f87f0ba08b84a720ded3466ebf667af5e2024-12-13
HASH
bcfac98117d9a52a3196a7bd041b49d5ff0cfb8c2024-12-13
HASH
e6d06bb9afaeb8aa80e62e76a26c7cffd14497f62024-12-13
HASH
0e2263d4f239a5c39960ffa6b6b688faa7fc3075e130fe0d4599d5b95ef206472024-12-13

Exploits

TitleSoftware LinkDate
DeividasTerechovas/SOC335-CVE-2024-49138-Exploitation-Detectedhttps://github.com/DeividasTerechovas/SOC335-CVE-2024-49138-Exploitation-Detected2025-03-14
MrAle98/CVE-2024-49138-POChttps://github.com/MrAle98/CVE-2024-49138-POC2025-01-15
aspire20x/CVE-2024-49138-POChttps://github.com/aspire20x/CVE-2024-49138-POC2025-01-15
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerabilityhttps://www.cisa.gov/search?g=CVE-2024-491382024-12-10
bananoname/CVE-2024-49138-POChttps://github.com/bananoname/CVE-2024-49138-POC2025-01-21
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News

Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability
Ajit Jasrotia2025-04-09
Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability | Microsoft has released security fixes to address a massive set of 126 flaws affecting its software products, including one vulnerability that it said has been actively exploited in the wild. Of the 126 vulnerabilities, 11 are rated Critical, 112 are rated Important, and two are rated Low in severity. Forty-nine of these vulnerabilities are classified […] The post Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability appeared first
allhackernews.com
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Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability - The Hacker News
2025-04-09
Microsoft Patches 126 Flaws Including Actively Exploited Windows CLFS Vulnerability - The Hacker News | News Content: Microsoft has released security fixes to address a massive set of 126 flaws affecting its software products, including one vulnerability that it said has been actively exploited in the wild. Of the 126 vulnerabilities, 11 are rated Critical, 112 are rated Important, and two are rated Low in severity. Forty-nine of these vulnerabilities are classified as privilege escalation, 34 as remote code execution, 16 as information disclosure, and 14 as denial-of-service (DoS) bugs. The updates are aside from the 22 flaws the
google.com
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Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824) - Security Boulevard
2025-04-08
Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824) - Security Boulevard | News Content: 11Critical 110Important 0Moderate 0Low Microsoft addresses 121 CVEs including one zero-day which was exploited in the wild. Microsoft patched 121 CVEs in its April 2025 Patch Tuesday release, with 11 rated critical and 110 rated as important. This month’s update includes patches for: ASP.NET Core Active Directory Domain Services Azure Local Azure Local Cluster Azure Portal Windows Admin Center Dynamics Business Central Microsoft AutoUpdate (MAU) Microsoft Edge (Chromium-based) Microsoft Edge for iOS Microsoft Office Microsoft Office Excel Microsoft Office OneNote Microsoft
google.com
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Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824)
Tenable Security Response Team2025-04-09
Microsoft’s April 2025 Patch Tuesday Addresses 121 CVEs (CVE-2025-29824) | 11Critical 110Important 0Moderate 0Low
securityboulevard.com
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Patch Tuesday, April 2025 Edition
BrianKrebs2025-04-09
Patch Tuesday, April 2025 Edition | Microsoft today released updates to plug at least 121 security holes in its Windows operating systems and software, including one vulnerability that is already being exploited in the wild. Eleven of those flaws earned Microsoft's most-dire "critical" rating, meaning malware or malcontents could exploit them with little to no interaction from Windows users.Microsoft today released updates to plug at least 121 security holes in its Windows operating systems and software, including one vulnerability that is already being
krebsonsecurity.com
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Tageszusammenfassung - 29.01.2025
CERT.at2025-03-01
Tageszusammenfassung - 29.01.2025 | End-of-Day report Timeframe: Dienstag 28-01-2025 18:00 - Mittwoch 29-01-2025 18:00 Handler: Alexander Riepl Co-Handler: n/a News Threat predictions for industrial enterprises 2025 Kaspersky ICS CERT analyzes industrial threat trends and makes forecasts on how the industrial threat landscape will look in 2025. https://securelist.com/industrial-threat-predictions-2025/115327/ ExxonMobil Lobbyist Caught Hacking Climate Activists</h3
cert.at
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Cybersecurity Snapshot: CISA Calls for Stamping Out Buffer Overflow Vulnerabilities, as Europol Tells Banks To Prep For Quantum Threat
Juan Perez2025-02-14
Cybersecurity Snapshot: CISA Calls for Stamping Out Buffer Overflow Vulnerabilities, as Europol Tells Banks To Prep For Quantum Threat | Check out best practices for preventing buffer overflow attacks. Plus, Europol offers best practices for banks to adopt quantum-resistant cryptography. Meanwhile, an informal Tenable poll looks at cloud security challenges. And get the latest on ransomware trends and on cybercrime legislation and prevention! Dive into six things that are top of mind for the week ending Feb. 14. 1 - CISA, FBI offer buffer overflow prevention
securityboulevard.com
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Social Media

LetsDefend Case Study #1: CVE-2024-49138 Exploitation (SOC335) — LOLBins, RDP and Sticky Keys Abuse #CyberSecurity #LOLBins #RemoteDesktopProtocol #StickyKeys #Powershell #IncidentResponse https://t.co/2BSPDS4ZCL
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CISA adds CVE-2024-49138 to its KEV catalog. This Windows CLFS vulnerability is actively exploited. Apply the latest patches now to secure your systems. #CyberSecurity #WindowsUpdate #CISAAlert https://t.co/0ew9n3HxcJ
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2
@dailytechonx Thanks for the heads-up on CVE-2024-49138! Applying patches promptly is key. It's great to see such crucial updates shared swiftly.
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Critical Windows Security Patch: CVE-2024-49138 Zero-Day Vulnerability Addressed https://t.co/wCgedGoVAk
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CVE-2024-49138 is a Windows vulnerabilitydetected by CrowdStrike as exploited in the wild. Microsoft patched the vulnerability on December 10th, 2024 with KB5048685 (for Windows 11 23H2/22H2).
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My new article about new ⁦@LetsDefendIO⁩ alert “SOC335 — CVE-2024-49138 Exploitation Detected” #medium #cybersecurity #blueteam #soc #letsdefendio https://t.co/dgMmcCU3kO https://t.co/FJdi39bdp6
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Windows CLFS Buffer Overflow Vulnerability CVE-2024-49138 - PoC Released - https://t.co/jGdqO14IIR
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CVE-2024-49138 Windows CLFS heap-based buffer overflow analysis - Part 1 - hn security https://t.co/7dCw1xAK3i
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CVE-2024-49138 Windows CLFS heap-based buffer overflow analysis - Part 2 - hn security https://t.co/IZSPeQjnqS
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Windows CLFS heap-based buffer overflow analysis (CVE-2024-49138) – Part 1 : https://t.co/ilXqU01GRt credits @MrAle_98 https://t.co/6mgqU0tioS
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Affected Software

No affected software found for this CVE

References

ReferenceLink
WINDOWS COMMON LOG FILE SYSTEM DRIVER ELEVATION OF PRIVILEGE VULNERABILITYhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49138
WINDOWS COMMON LOG FILE SYSTEM DRIVER ELEVATION OF PRIVILEGE VULNERABILITYhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49138

CWE Details

CWE IDCWE NameDescription
CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

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