CVE-2024-38064 is a vulnerability classified under CWE-908 (Use of Uninitialized Resource) found in Microsoft Windows 10 Version 1809, specifically in the TCP/IP stack. The flaw arises because the system uses memory or resources that have not been properly initialized before use, which can inadvertently expose sensitive information from memory buffers. This vulnerability is exploitable remotely over the network without requiring any privileges or user interaction, making it accessible to unauthenticated attackers. The vulnerability impacts confidentiality by allowing attackers to glean information that could include system details, network configurations, or other sensitive data residing in memory. The CVSS 3.1 score of 7.5 reflects a high severity due to the network attack vector (AV:N), low attack complexity (AC:L), and no privileges or user interaction required (PR:N/UI:N). The scope is unchanged (S:U), and the impact is limited to confidentiality (C:H/I:N/A:N). No known exploits have been reported in the wild yet, but the vulnerability's characteristics suggest it could be leveraged for reconnaissance or to support further attacks. The lack of a patch link indicates that a fix may not yet be publicly available, emphasizing the need for vigilance and interim mitigations. The vulnerability affects Windows 10 Version 1809 build 10.0.17763.0, which remains in use in various enterprise environments despite being an older release. Given the critical role of TCP/IP in network communications, this flaw could be leveraged to extract sensitive information from affected systems remotely.

For European organizations, the primary impact of CVE-2024-38064 is the potential unauthorized disclosure of sensitive information from systems running Windows 10 Version 1809. This could include internal network details, system configurations, or other data residing in uninitialized memory buffers within the TCP/IP stack. Such information disclosure can facilitate further attacks such as targeted exploitation, lateral movement, or espionage activities. Organizations in sectors with high reliance on legacy Windows 10 systems—such as government, healthcare, finance, and critical infrastructure—face elevated risks. The vulnerability's remote and unauthenticated nature increases the attack surface, especially for systems exposed to untrusted networks or the internet. While no integrity or availability impacts are noted, the confidentiality breach alone can have severe consequences, including regulatory non-compliance under GDPR if personal or sensitive data is exposed. Additionally, the absence of known exploits currently provides a window for proactive mitigation, but also a risk that attackers may develop exploits rapidly given the vulnerability's characteristics.

1. Prioritize upgrading affected systems from Windows 10 Version 1809 to a more recent, supported Windows version that includes security fixes for this vulnerability. 2. Monitor Microsoft security advisories closely and apply patches immediately once they become available for this CVE. 3. Employ network segmentation and restrict access to critical systems running legacy Windows 10 versions to trusted internal networks only. 4. Use network intrusion detection and prevention systems (IDS/IPS) to monitor for anomalous TCP/IP traffic patterns that could indicate exploitation attempts. 5. Implement strict firewall rules to limit exposure of vulnerable systems to untrusted networks, especially blocking unnecessary inbound TCP/IP traffic. 6. Conduct regular vulnerability scanning and asset inventory to identify and track systems still running Windows 10 Version 1809. 7. Educate IT staff about this vulnerability and ensure incident response plans include steps for potential information disclosure incidents. 8. Consider deploying endpoint detection and response (EDR) solutions capable of detecting suspicious network or memory activity related to TCP/IP stack exploitation.