CVE-2025-8258 is a medium-severity vulnerability affecting the Cool Mo Maigcal Number App versions 1.0.0 through 1.0.3 on the Android platform. The root cause lies in the improper export of Android application components, specifically related to the configuration in the AndroidManifest.xml file for the component com.sdmagic.number. Improper export means that components such as activities, services, or broadcast receivers are unintentionally made accessible to other applications or processes outside the app's intended scope. This misconfiguration can allow a local attacker—someone with physical or logical access to the device—to interact with these components in ways not intended by the developers. The vulnerability does not require user interaction but does require local access and low privileges, making exploitation somewhat constrained but still feasible. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) indicates that the attack vector is local, with low attack complexity, no user interaction, and partial impacts on confidentiality, integrity, and availability. No known exploits are currently in the wild, and no patches have been linked yet. The vulnerability could allow an attacker to manipulate app components to gain unauthorized access to app functionality or data, potentially leading to information disclosure or disruption of app behavior. Since the vulnerability is related to Android app component exposure, it is primarily a risk on devices where this app is installed and used.

For European organizations, the impact depends largely on the deployment and usage of the Cool Mo Maigcal Number App within their environment. If the app is used on corporate Android devices, the improper export of components could allow local attackers or malicious insiders to exploit the vulnerability to access sensitive app functions or data, potentially leading to leakage of confidential information or disruption of business processes. Although the attack requires local access and low privileges, in environments where devices are shared or less physically secure, this could be a vector for lateral movement or privilege escalation. The partial impact on confidentiality, integrity, and availability means that sensitive data could be exposed or modified, and app functionality could be impaired. However, since the app is not a widely known enterprise tool, the overall risk to large organizations may be limited unless the app is specifically used in critical workflows. The lack of known exploits reduces immediate risk but does not eliminate the need for vigilance. European organizations with mobile device management (MDM) solutions should consider monitoring app inventories for this app and assess exposure accordingly.

1. Immediate mitigation should include auditing Android devices within the organization to identify installations of the Cool Mo Maigcal Number App, especially versions 1.0.0 through 1.0.3. 2. If the app is found, restrict its use on corporate devices until a patch or update is available. 3. Apply the principle of least privilege by ensuring that devices are locked down to prevent unauthorized local access, including enforcing strong device authentication and screen locks. 4. Monitor for unusual inter-process communication or app behavior that could indicate exploitation attempts. 5. Engage with the vendor (Cool Mo) to obtain information about patches or updates addressing this vulnerability and prioritize timely deployment once available. 6. For developers or organizations that use this app internally or have access to its source, review and correct the AndroidManifest.xml to ensure that only necessary components are exported, and apply proper permissions to sensitive components. 7. Educate users about the risks of installing untrusted apps and the importance of device security to reduce the risk of local exploitation. 8. Consider implementing mobile threat defense solutions that can detect anomalous app behavior or component misuse.