CVE-2025-20959 is a medium-severity vulnerability affecting Samsung Mobile Devices, specifically related to the Wi-Fi Peer-to-Peer (P2P) service. The root cause is improper access control (CWE-284) due to the use of implicit intents for sensitive communication within the Wi-Fi P2P service prior to the Samsung Mobile Release (SMR) May-2025 Release 1. Implicit intents in Android allow components to request actions without specifying the target component explicitly, which can lead to unintended recipients receiving sensitive information if not properly controlled. In this case, local attackers with physical or logical access to the device can exploit this flaw to intercept or access sensitive information exchanged via the Wi-Fi P2P service. The vulnerability does not require any privileges (PR:N) or user interaction (UI:N) to exploit, but the attacker must have local access (AV:L), such as proximity or local network access. The impact includes limited confidentiality and integrity compromise (C:L/I:L), but no impact on availability (A:N). The CVSS v3.1 base score is 5.1, reflecting a medium severity level. No known exploits are currently reported in the wild, and no official patches or mitigations have been linked yet. This vulnerability highlights a design weakness in Samsung's handling of inter-process communication for sensitive Wi-Fi P2P data, potentially exposing user data or device state information to unauthorized local entities.

For European organizations, especially those with employees or operations relying heavily on Samsung Mobile Devices, this vulnerability poses a risk of sensitive data leakage or unauthorized access to device information through local exploitation. While the attack requires local access, scenarios such as insider threats, compromised physical security, or malicious actors in close proximity (e.g., in shared office spaces or public areas) could leverage this flaw to gather sensitive information. This could affect confidentiality of corporate communications or device configurations transmitted over Wi-Fi P2P. The integrity impact, though limited, could allow attackers to manipulate certain data exchanges, potentially leading to further exploitation or lateral movement within corporate networks. Organizations handling sensitive or regulated data (e.g., finance, healthcare, government) may face compliance risks if such vulnerabilities are exploited. However, the lack of remote exploitability and no requirement for user interaction reduce the overall risk profile. Still, the vulnerability underscores the need for strict device management and physical security controls in corporate environments.

1. Immediate mitigation involves restricting physical and local network access to Samsung Mobile Devices, especially in sensitive environments. 2. Enforce strict device usage policies, including disabling Wi-Fi P2P features where not required or restricting their use to trusted networks and users. 3. Monitor device logs and network traffic for unusual Wi-Fi P2P activity that could indicate exploitation attempts. 4. Apply the official Samsung Mobile Release (SMR) May-2025 Release 1 update as soon as it becomes available, as it is expected to address this vulnerability by correcting the implicit intent usage. 5. Employ Mobile Device Management (MDM) solutions to enforce security configurations and restrict potentially vulnerable services. 6. Educate users about the risks of local attacks and the importance of physical device security. 7. For highly sensitive environments, consider additional endpoint protection solutions that can detect anomalous inter-process communications or unauthorized data access attempts on mobile devices.