CVE-2025-58486 is a vulnerability identified in the Samsung Account application used on Samsung Mobile devices. The root cause is improper input validation (classified under CWE-20), which allows a local attacker to execute arbitrary scripts within the context of the application. This vulnerability exists in versions prior to 15.5.01.1 of Samsung Account. The attack vector is local, meaning the attacker must have physical or logical local access to the device to exploit the flaw. No privileges or user interaction are required, which lowers the barrier for exploitation once local access is obtained. The CVSS v3.1 base score is 4.0, reflecting a medium severity level primarily due to the limited impact on confidentiality and no impact on integrity or availability. The vulnerability could enable an attacker to execute scripts that may access or leak sensitive information stored or accessible through the Samsung Account application. However, there are no known exploits in the wild at this time, and no patch links have been published yet. The vulnerability was reserved in early September 2025 and publicly disclosed in December 2025. The lack of remote exploitation and the requirement for local access reduce the overall risk but do not eliminate it, especially in environments where devices may be shared or physically accessible by untrusted individuals.

For European organizations, the impact of CVE-2025-58486 is moderate but should not be overlooked. Samsung devices are widely used across Europe, including in enterprise and governmental sectors. The vulnerability allows local attackers to execute arbitrary scripts, which could lead to unauthorized data access or leakage of sensitive account information. While it does not directly compromise device integrity or availability, the confidentiality breach could facilitate further attacks or data exfiltration. Organizations with mobile workforces or shared device environments are at higher risk, especially if physical device security is lax. The medium CVSS score reflects that the vulnerability is not trivial but also not critical. The absence of known exploits reduces immediate threat levels, but the potential for exploitation exists if attackers gain local access. This could be a concern in sectors with high-value data or where Samsung devices are used for sensitive communications. Additionally, the lack of a patch at the time of disclosure means organizations must rely on interim controls until updates are available.

1. Update Samsung Account application to version 15.5.01.1 or later as soon as the patch is released by Samsung to remediate the vulnerability. 2. Enforce strict physical security controls to prevent unauthorized local access to devices, including secure storage and device lock policies. 3. Implement device management solutions (e.g., Mobile Device Management - MDM) to monitor and restrict installation of unauthorized applications or scripts. 4. Educate users about the risks of local attacks and encourage strong authentication methods such as biometrics or PINs to limit access. 5. Regularly audit device configurations and installed applications to detect any suspicious activity or unauthorized script execution. 6. Consider disabling or restricting Samsung Account usage on devices where it is not essential, reducing the attack surface. 7. Monitor security advisories from Samsung and related threat intelligence sources for updates or emerging exploit reports. 8. Employ endpoint protection solutions capable of detecting anomalous script execution or local privilege escalation attempts. These measures collectively reduce the likelihood of exploitation and limit the impact if an attack occurs.