CVE-2025-60706 is a medium severity vulnerability classified as CWE-125 (Out-of-bounds Read) affecting the Hyper-V virtualization component in Microsoft Windows 10 Version 1809 (build 17763.0). The flaw allows an authorized attacker with local access and low privileges to perform an out-of-bounds read operation, which can lead to unauthorized disclosure of sensitive information from the system memory. The vulnerability does not require user interaction and does not affect system integrity or availability, limiting its impact to confidentiality breaches. The attack vector is local, meaning the attacker must already have some level of access to the system, such as a standard user account. The vulnerability was reserved on September 26, 2025, and published on November 11, 2025, with no known exploits in the wild at the time of publication. No patches have been linked yet, but remediation would typically involve applying security updates from Microsoft or upgrading to a newer, supported Windows version. The vulnerability's presence in Hyper-V is significant because Hyper-V is widely used for virtualization in enterprise environments, and an information disclosure could expose sensitive data from virtual machines or the host system. Given the affected version is Windows 10 1809, which is out of mainstream support, many organizations may have already migrated, but legacy systems remain vulnerable.

For European organizations, the primary impact is the potential unauthorized disclosure of sensitive information due to the out-of-bounds read vulnerability in Hyper-V on Windows 10 1809 systems. This could include leakage of confidential data from virtual machines or the host OS memory, potentially exposing intellectual property, credentials, or other sensitive information. While the vulnerability does not allow code execution or system disruption, the confidentiality breach could lead to further attacks or compliance violations under regulations such as GDPR. Organizations relying on legacy Windows 10 1809 systems with Hyper-V enabled, especially in sectors like finance, government, and critical infrastructure, are at higher risk. The requirement for local access limits remote exploitation but insider threats or compromised user accounts could exploit this vulnerability. The lack of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits over time.

European organizations should prioritize upgrading systems from Windows 10 Version 1809 to a supported and patched Windows release to eliminate this vulnerability. If upgrading is not immediately feasible, organizations should restrict local access to Hyper-V hosts, enforce strict user privilege management, and monitor for unusual local activity indicative of exploitation attempts. Implementing application whitelisting and endpoint detection and response (EDR) solutions can help detect and prevent exploitation. Network segmentation should isolate virtualization hosts to limit lateral movement. Regularly auditing Hyper-V configurations and applying any Microsoft security advisories or patches as they become available is critical. Additionally, organizations should educate users about the risks of local privilege misuse and enforce strong authentication and access controls to reduce the risk of insider threats exploiting this vulnerability.