CVE-2025-24048 is a heap-based buffer overflow vulnerability classified under CWE-122, found in the Windows Hyper-V component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). This vulnerability allows an attacker with authorized local access to the system to perform a privilege escalation attack by exploiting improper handling of memory buffers in Hyper-V. The overflow can corrupt memory, leading to arbitrary code execution with elevated privileges, compromising system confidentiality, integrity, and availability. The vulnerability does not require user interaction but does require local privileges, making it a significant threat in environments where multiple users or processes have local access. The CVSS v3.1 score of 7.8 reflects high severity, with high impact on confidentiality, integrity, and availability, and low attack complexity. No public exploits or patches are currently available, but the vulnerability is officially published and recognized by CISA. Given Hyper-V’s role in virtualization, exploitation could affect virtual machine isolation and lead to broader system compromise. The affected Windows 10 version is an older release, but still in use in some enterprise environments, especially those with legacy systems or specialized virtualization setups.

For European organizations, this vulnerability poses a significant risk particularly to those relying on Windows 10 Version 1607 with Hyper-V enabled for virtualization tasks. Successful exploitation could allow attackers to escalate privileges locally, potentially gaining full control over affected systems. This can lead to data breaches, disruption of critical services, and compromise of virtualized environments. Sectors such as finance, healthcare, government, and critical infrastructure that use legacy Windows systems for virtualization are at heightened risk. The vulnerability undermines the security boundaries between virtual machines and the host, increasing the risk of lateral movement within networks. Although no exploits are currently known in the wild, the high severity and ease of exploitation mean attackers could develop exploits rapidly once details are public. The lack of patches increases exposure time, especially in environments where upgrading Windows versions is slow due to operational constraints.

1. Restrict local access to systems running Windows 10 Version 1607 with Hyper-V enabled to trusted personnel only. 2. Monitor system logs and Hyper-V activity for unusual behavior indicative of exploitation attempts. 3. Implement strict access controls and use endpoint detection and response (EDR) tools to detect privilege escalation attempts. 4. Where possible, disable Hyper-V on systems that do not require virtualization to reduce attack surface. 5. Plan and prioritize upgrading affected systems to a supported, patched Windows version to eliminate the vulnerability. 6. Apply any interim security updates or workarounds released by Microsoft promptly once available. 7. Conduct regular security audits focusing on legacy systems and virtualization environments. 8. Educate IT staff about the risks of local privilege escalation vulnerabilities and the importance of timely patching.