CVE-2025-58482 is an improper access control vulnerability classified under CWE-284, affecting the MPLocalService component of Samsung Mobile's MotionPhoto application prior to version 4.1.51. The flaw allows a local attacker with limited privileges to initiate a privileged service without proper authorization checks. This escalation can lead to a compromise of confidentiality, integrity, and availability of the device and its data. The vulnerability is local vector (AV:L), requires low attack complexity (AC:L), and low privileges (PR:L), but does require user interaction (UI:R). The scope remains unchanged (S:U), meaning the impact is confined to the vulnerable component or device. The CVSS v3.1 base score is 7.3, indicating a high severity. Although no public exploits are currently known, the potential for privilege escalation and full device compromise is significant. The vulnerability likely stems from insufficient validation of requests to the MPLocalService, allowing unauthorized service start commands. This could enable attackers to execute privileged operations, access sensitive user data, or disrupt device functionality. Samsung has reserved the CVE and published the advisory but has not yet released a patch or detailed mitigation guidance beyond version updates. The vulnerability primarily affects Samsung mobile devices running the MotionPhoto app with versions before 4.1.51, which is common in many consumer and enterprise environments.

For European organizations, this vulnerability presents a substantial risk, especially for those with employees or operations relying on Samsung mobile devices. The ability for a local attacker to escalate privileges and start privileged services can lead to unauthorized access to sensitive corporate data, interception of communications, or disruption of mobile device availability. This is particularly critical for sectors handling sensitive information such as finance, government, healthcare, and critical infrastructure. The local attack vector means physical access or malware with local execution capability is required, which could be facilitated by social engineering or insider threats. The high confidentiality, integrity, and availability impact could result in data breaches, loss of trust, regulatory penalties under GDPR, and operational disruptions. Given the widespread use of Samsung devices in Europe, the threat surface is significant. Organizations with Bring Your Own Device (BYOD) policies or mobile workforce are especially vulnerable if devices are not updated promptly.

The primary mitigation is to update the MotionPhoto application to version 4.1.51 or later, where the vulnerability has been addressed. Organizations should enforce mobile device management (MDM) policies that mandate timely updates of applications and operating systems. Restricting local access to devices through strong physical security controls and endpoint protection can reduce the risk of exploitation. Employing application whitelisting and monitoring for unusual service start requests on devices can help detect exploitation attempts. User training to recognize phishing or social engineering attempts that could lead to local code execution is also critical. For high-security environments, consider disabling or limiting the use of the MotionPhoto app if updates cannot be applied immediately. Regular audits of device security posture and incident response readiness for mobile threats will further reduce impact.