CVE-2025-24983 is a use-after-free vulnerability classified under CWE-416, affecting the Win32 Kernel Subsystem in Microsoft Windows 10 Version 1507 (build 10.0.10240.0). This vulnerability arises when the system improperly handles memory, freeing an object while it is still in use, which can lead to memory corruption. An authorized attacker with local access and low privileges can exploit this flaw to execute arbitrary code in kernel mode, thereby elevating their privileges to SYSTEM level. The attack complexity is high, requiring specific conditions and knowledge of the system internals, but it does not require user interaction. The vulnerability impacts the confidentiality, integrity, and availability of the affected system by allowing attackers to bypass security controls and potentially take full control of the system. Although no known exploits are currently reported in the wild, the vulnerability is publicly disclosed and rated with a CVSS v3.1 score of 7.0, indicating high severity. No patches or mitigation tools have been released at the time of publication, increasing the risk for unpatched systems. The vulnerability is particularly relevant for legacy systems still running the initial release of Windows 10, which is no longer supported and lacks security updates. Organizations relying on these outdated systems face increased risk of targeted local attacks that could lead to broader network compromise.

For European organizations, the impact of CVE-2025-24983 is significant, especially for those still operating legacy Windows 10 Version 1507 systems. Successful exploitation allows attackers to gain SYSTEM-level privileges, enabling them to disable security controls, access sensitive data, install persistent malware, or disrupt system availability. This can lead to data breaches, operational downtime, and loss of trust. Critical sectors such as government, finance, healthcare, and industrial control systems are particularly vulnerable due to the high value of their data and services. The requirement for local access limits remote exploitation but does not eliminate risk, as attackers may leverage other vulnerabilities or social engineering to gain initial footholds. The lack of patches increases the window of exposure, and organizations with insufficient endpoint security or weak access controls are at higher risk. Additionally, the vulnerability could be chained with other exploits to facilitate lateral movement within networks, amplifying its impact across European enterprises.

To mitigate CVE-2025-24983, European organizations should prioritize upgrading all Windows 10 Version 1507 systems to a supported and fully patched version of Windows 10 or Windows 11. If immediate upgrades are not feasible, organizations should enforce strict local access controls, limiting user permissions and employing robust endpoint protection solutions capable of detecting anomalous kernel-level activities. Implementing application whitelisting and behavior-based detection can help identify exploitation attempts. Network segmentation should be used to isolate legacy systems from critical infrastructure. Regular auditing of user privileges and monitoring for unusual privilege escalation events are essential. Employing least privilege principles and multi-factor authentication for local logins can reduce the risk of unauthorized access. Organizations should also stay informed about vendor advisories and apply patches promptly once available. Finally, conducting security awareness training to reduce insider threats and accidental misuse can further reduce exploitation likelihood.