CVE-2025-24060 is a vulnerability identified in the Windows Desktop Window Manager (DWM) Core Library within Microsoft Windows 10 Version 1809 (build 10.0.17763.0). The root cause is improper input validation (CWE-20), which allows an authorized local attacker to elevate their privileges on the affected system. This means that an attacker who already has some level of access to the system can exploit this flaw to gain higher privileges, potentially administrative rights, without requiring user interaction. The vulnerability does not require complex attack vectors but does require local access and some privileges to initiate the exploit. The impact of successful exploitation includes full compromise of system confidentiality, integrity, and availability, as elevated privileges can enable arbitrary code execution, installation of persistent malware, or disruption of system services. The CVSS v3.1 base score of 7.8 indicates a high severity, with metrics showing low attack complexity, low privileges required, no user interaction, and complete impact on confidentiality, integrity, and availability. Although no public exploits are currently known, the vulnerability is significant due to the widespread use of Windows 10 1809 in enterprise environments. The lack of available patches at the time of publication increases the urgency for mitigation and monitoring.

For European organizations, the impact of CVE-2025-24060 can be substantial, particularly for those still operating legacy Windows 10 Version 1809 systems. Successful exploitation can lead to unauthorized privilege escalation, enabling attackers to bypass security controls, access sensitive data, and deploy malware with elevated rights. This can result in data breaches, operational disruptions, and potential lateral movement within networks. Critical sectors such as finance, healthcare, government, and industrial control systems are especially vulnerable due to the potential for high-value targets and sensitive information. The vulnerability's local attack vector means that insider threats or attackers who gain initial footholds through phishing or other means could leverage this flaw to deepen their access. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, as attackers may develop exploits over time. Organizations with compliance obligations under GDPR and other regulations must consider the risk of data exposure and operational impact.

1. Apply official security patches from Microsoft as soon as they become available for Windows 10 Version 1809 systems. 2. If patching is delayed, restrict local access to systems running this version by enforcing strict access controls, including limiting administrative privileges and using endpoint protection solutions. 3. Implement robust monitoring and alerting for unusual privilege escalation attempts or suspicious activity on endpoints. 4. Employ application whitelisting and behavior-based detection to identify exploitation attempts targeting the DWM Core Library. 5. Consider upgrading affected systems to a supported and fully patched Windows version to eliminate exposure to this and other legacy vulnerabilities. 6. Conduct regular security awareness training to reduce the risk of initial compromise that could lead to local exploitation. 7. Use network segmentation to limit the spread of an attacker who gains elevated privileges on one system.