CVE-2025-11130 is a high-severity vulnerability affecting iHongRen's pptp-vpn versions 1.0 and 1.0.1 on macOS platforms. The vulnerability resides in the function shouldAcceptNewConnection within the HelpTool/HelperTool.m file, specifically in the XPC Service component. The core issue is a missing authentication check that allows local attackers to manipulate the VPN service without proper verification. This flaw enables an attacker with local access to the system to bypass authentication controls, potentially gaining unauthorized access or control over the VPN service. The vulnerability does not require any privileges or user interaction to exploit, making it easier for a local attacker to leverage. Although the attack vector is local only, the impact on confidentiality, integrity, and availability is high, as indicated by the CVSS 4.0 score of 8.6. The vendor was notified early but has not responded or issued a patch, and while no exploits have been observed in the wild yet, a public exploit is available, increasing the risk of exploitation. The vulnerability's exploitation could lead to unauthorized VPN connections, data interception, or manipulation of VPN traffic, severely compromising secure communications for affected users.

For European organizations, this vulnerability poses a significant risk, especially for those relying on iHongRen pptp-vpn on macOS for secure remote access or internal communications. Successful exploitation could allow malicious insiders or attackers who have gained local access (e.g., via compromised endpoints or insider threats) to bypass VPN authentication, potentially intercepting or redirecting sensitive data flows. This could lead to data breaches, unauthorized network access, and lateral movement within corporate networks. Given the high confidentiality and integrity impact, organizations handling sensitive personal data under GDPR or critical infrastructure sectors could face regulatory and operational consequences. The lack of vendor response and patch availability exacerbates the risk, as organizations must rely on mitigations or alternative solutions to protect their environments.

1. Immediate mitigation should include restricting local access to macOS systems running iHongRen pptp-vpn to trusted personnel only, minimizing the attack surface. 2. Employ endpoint security solutions that monitor and restrict unauthorized local process manipulations or privilege escalations. 3. Disable or uninstall the vulnerable pptp-vpn client if feasible, especially if alternative VPN solutions are available. 4. Implement strict network segmentation and monitoring to detect anomalous VPN connection attempts or unusual traffic patterns. 5. Use multi-factor authentication (MFA) at the network or VPN gateway level to add an additional layer of verification beyond the vulnerable client. 6. Regularly audit and update macOS systems and VPN clients, and monitor vendor communications for any forthcoming patches or advisories. 7. Educate users about the risks of local system compromise and enforce strong endpoint security policies to prevent unauthorized local access.