CVE-2025-58481 is an improper access control vulnerability classified under CWE-284, found in the MPRemoteService component of Samsung Mobile's MotionPhoto application prior to version 4.1.51. The flaw allows a local attacker with limited privileges (PR:L) to start a privileged service, which normally should be restricted. This escalation can lead to full compromise of the device's confidentiality, integrity, and availability, as indicated by the CVSS vector (C:H/I:H/A:H). The attack vector is local (AV:L), requiring the attacker to have physical or logical local access to the device. User interaction is required (UI:R), meaning the attacker must trick or convince the user to perform some action, such as launching the vulnerable app or service. The vulnerability does not require elevated privileges initially, making it easier to exploit from a low-privilege context. Although no public exploits are known at this time, the vulnerability's nature suggests that once exploited, an attacker could execute privileged operations, potentially installing malware, accessing sensitive data, or disrupting device functionality. The vulnerability was reserved in early September 2025 and published in December 2025, with no patch links currently available, indicating that remediation may still be pending or in progress. The MotionPhoto feature is used widely on Samsung mobile devices to capture and process photos with embedded motion, making this vulnerability relevant to a broad user base.

For European organizations, this vulnerability poses a significant risk, especially for those relying heavily on Samsung mobile devices for communication, data access, and operational tasks. Successful exploitation could lead to unauthorized access to sensitive corporate data, disruption of mobile services, and potential lateral movement within enterprise networks if devices are connected to corporate infrastructure. The high confidentiality, integrity, and availability impact means that attackers could exfiltrate data, modify or delete critical information, or render devices unusable. Sectors such as finance, government, healthcare, and critical infrastructure, which often use Samsung devices and require stringent data protection, could be particularly affected. The local attack vector limits remote exploitation but does not eliminate risk, especially in environments where devices are shared, lost, or physically accessible by attackers. The requirement for user interaction suggests social engineering could be a component of attacks, increasing risk in environments with less security awareness.

Immediate mitigation should focus on minimizing local access to devices, enforcing strict physical security controls, and educating users about the risks of interacting with untrusted prompts or applications. Organizations should monitor for unusual service start events related to MPRemoteService or MotionPhoto components. Implement mobile device management (MDM) policies to restrict installation of unauthorized applications and enforce least privilege principles. Once Samsung releases a patch for MotionPhoto version 4.1.51 or later, organizations must prioritize timely updates across all affected devices. Additionally, consider disabling the MotionPhoto feature if it is not essential to reduce the attack surface. Employ endpoint detection and response (EDR) tools capable of detecting privilege escalation attempts on mobile devices. Regular audits of device configurations and installed applications can help identify vulnerable versions and unauthorized changes.