CVE-2024-30014 is a high-severity remote code execution vulnerability affecting Microsoft Windows 10 Version 1809, specifically in the Routing and Remote Access Service (RRAS). The root cause is a numeric truncation error (CWE-197), which occurs when a numeric value is improperly truncated, leading to potential memory corruption. This vulnerability allows an unauthenticated attacker to remotely execute arbitrary code on a vulnerable system by sending specially crafted network packets to the RRAS component. Exploitation requires user interaction, likely in the form of triggering the service to process malicious input, and has a high attack complexity due to the need for precise conditions. The vulnerability impacts confidentiality, integrity, and availability, as successful exploitation can lead to full system compromise. The CVSS 3.1 base score is 7.5, reflecting a high severity with network attack vector, no privileges required, but user interaction necessary. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating a potential window of exposure for unpatched systems. The affected version is Windows 10 Version 1809 (build 10.0.17763.0), which is an older but still in-use release in some environments. The vulnerability is significant because RRAS is often used in enterprise environments to provide VPN and routing services, making it a critical attack surface for remote attackers aiming to gain unauthorized access or disrupt network services.

For European organizations, the impact of CVE-2024-30014 can be substantial, especially for those relying on Windows 10 Version 1809 in their infrastructure. RRAS is commonly deployed in corporate networks to enable remote access and VPN connectivity, which are essential for business continuity and remote workforce support. Exploitation could lead to unauthorized remote code execution, allowing attackers to gain control over affected systems, potentially leading to data breaches, lateral movement within networks, disruption of network services, and loss of sensitive information. Critical sectors such as finance, healthcare, government, and telecommunications could face operational disruptions and regulatory compliance issues due to compromised systems. The requirement for user interaction slightly reduces the risk of automated widespread exploitation but does not eliminate targeted attacks, especially spear-phishing or social engineering campaigns that could trigger the vulnerability. The lack of known exploits in the wild currently provides a limited window for proactive defense, but organizations should not delay remediation given the high impact on confidentiality, integrity, and availability.

1. Immediate identification and inventory of all systems running Windows 10 Version 1809 (build 10.0.17763.0) with RRAS enabled. 2. Apply any available security updates or patches from Microsoft as soon as they are released; monitor Microsoft security advisories closely since no patch links are currently provided. 3. If patching is not immediately possible, consider disabling RRAS or restricting its exposure to untrusted networks to reduce attack surface. 4. Implement strict network segmentation and firewall rules to limit inbound traffic to RRAS services only from trusted sources. 5. Enhance monitoring and logging of RRAS activity to detect anomalous or suspicious network packets that could indicate exploitation attempts. 6. Conduct user awareness training to reduce the risk of user interaction-based exploitation, focusing on recognizing phishing or social engineering attempts that could trigger the vulnerability. 7. Employ endpoint detection and response (EDR) solutions with signatures or heuristics capable of detecting exploitation attempts targeting RRAS. 8. Review and harden VPN and remote access configurations to minimize unnecessary exposure and enforce multi-factor authentication where possible to mitigate post-exploitation lateral movement.