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CVE-2024-38050: CWE-191: Integer Underflow (Wrap or Wraparound) in Microsoft Windows 10 Version 1809

0
High
VulnerabilityCVE-2024-38050cvecve-2024-38050cwe-191
Published: Tue Jul 09 2024 (07/09/2024, 17:03:13 UTC)
Source: CVE
Vendor/Project: Microsoft
Product: Windows 10 Version 1809

Description

Windows Workstation Service Elevation of Privilege Vulnerability

AI-Powered Analysis

AILast updated: 10/14/2025, 23:14:21 UTC

Technical Analysis

CVE-2024-38050 is an integer underflow vulnerability (CWE-191) identified in the Microsoft Windows 10 Version 1809 Workstation Service. This flaw arises when an integer value unexpectedly wraps around due to improper handling of arithmetic operations, leading to memory corruption or logic errors. Specifically, the vulnerability allows an attacker with limited privileges (low-level user) to exploit the underflow condition to escalate their privileges on the affected system. The vulnerability does not require user interaction and can be exploited remotely with low complexity, as indicated by the CVSS vector (AV:L/AC:L/PR:L/UI:N). The impact is severe, affecting confidentiality, integrity, and availability, as the attacker could gain administrative control, potentially leading to full system compromise. Although no public exploits are known at this time, the vulnerability's nature and the widespread use of Windows 10 Version 1809 make it a critical concern. The affected version is specifically Windows 10 build 17763.0, which is still in use in many enterprise environments. The vulnerability was reserved in June 2024 and published in July 2024, with Microsoft expected to release patches. Until patches are available, organizations must rely on compensating controls to mitigate risk.

Potential Impact

For European organizations, the impact of CVE-2024-38050 can be substantial. The ability for a low-privileged user to escalate privileges threatens the confidentiality of sensitive data, the integrity of systems and applications, and the availability of critical services. Sectors such as finance, healthcare, government, and critical infrastructure are particularly vulnerable due to the sensitive nature of their data and operations. Exploitation could lead to unauthorized access to confidential information, disruption of business processes, deployment of ransomware or malware with elevated privileges, and lateral movement within networks. Legacy systems running Windows 10 Version 1809, which may not be fully patched or upgraded, increase the attack surface. The lack of user interaction required for exploitation further raises the risk of automated or stealthy attacks. European organizations with compliance requirements (e.g., GDPR) face additional legal and reputational risks if breaches occur due to this vulnerability.

Mitigation Recommendations

1. Apply official Microsoft patches immediately once they are released for Windows 10 Version 1809 to remediate the vulnerability. 2. If patches are not yet available, restrict access to systems running Windows 10 1809 by limiting user privileges and enforcing the principle of least privilege. 3. Implement network segmentation to isolate legacy systems from critical infrastructure and sensitive data repositories. 4. Monitor logs and system behavior for unusual privilege escalation attempts or anomalous activity related to the Workstation Service. 5. Use endpoint detection and response (EDR) tools capable of detecting exploitation attempts targeting privilege escalation vulnerabilities. 6. Consider upgrading affected systems to a supported and fully patched Windows version to reduce exposure to legacy vulnerabilities. 7. Employ application whitelisting and restrict execution of untrusted code to limit the impact of potential exploitation. 8. Educate IT staff and users about the risks associated with legacy systems and the importance of timely patching and security hygiene.

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Technical Details

Data Version
5.1
Assigner Short Name
microsoft
Date Reserved
2024-06-11T22:08:32.505Z
Cisa Enriched
true
Cvss Version
3.1
State
PUBLISHED

Threat ID: 682d981ec4522896dcbdb84a

Added to database: 5/21/2025, 9:08:46 AM

Last enriched: 10/14/2025, 11:14:21 PM

Last updated: 10/16/2025, 3:18:24 PM

Views: 30

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