CVE-2025-2190 is a high-severity vulnerability identified in the TECNO mobile application com.transsnet.store, specifically version 9.1.0. The vulnerability is classified under CWE-297, which pertains to improper validation of certificates with host mismatches. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack by exploiting the application's failure to correctly verify that the SSL/TLS certificate presented by a server matches the expected hostname. Because the application does not properly validate the certificate's hostname, an attacker positioned on the network path can intercept and manipulate the communication between the app and its backend servers. This interception can lead to injection of malicious code or commands, potentially compromising the confidentiality, integrity, and availability of the application and its data. The CVSS 3.1 base score of 8.1 reflects the critical nature of this vulnerability, with a vector indicating network attack vector (AV:N), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). No known exploits are currently reported in the wild, and no patches have been published yet. However, the vulnerability's nature and severity suggest that exploitation could lead to significant security breaches, including unauthorized data access, code execution, or disruption of service within the affected mobile application environment.

For European organizations, the impact of CVE-2025-2190 can be substantial, especially for those relying on the TECNO com.transsnet.store application for business operations, customer engagement, or internal processes. The vulnerability enables attackers to intercept sensitive data transmitted by the app, such as authentication tokens, personal information, or proprietary business data, leading to potential data breaches and privacy violations under GDPR regulations. Furthermore, the possibility of code injection through MITM attacks could allow attackers to execute arbitrary code within the app's context, potentially leading to further compromise of organizational networks or user devices. This could disrupt business continuity, damage reputation, and incur regulatory penalties. Given the high impact on confidentiality, integrity, and availability, organizations using this app or integrating it into their workflows face risks including unauthorized access, data manipulation, and service outages. The lack of patches and known exploits in the wild means organizations must proactively address the vulnerability to prevent future exploitation.

To mitigate the risks posed by CVE-2025-2190, European organizations should take several specific actions beyond generic security hygiene: 1) Immediately audit the use of the TECNO com.transsnet.store app within their environment to assess exposure. 2) Restrict or disable the app's network access through enterprise mobile device management (MDM) solutions until a patch is available. 3) Implement network-level protections such as enforcing strict TLS inspection policies and using secure DNS to detect and block MITM attempts. 4) Educate users about the risks of connecting to untrusted Wi-Fi networks, which facilitate MITM attacks. 5) Monitor network traffic for unusual patterns indicative of interception or injection attempts. 6) Engage with TECNO or authorized vendors to obtain updates or patches as soon as they are released. 7) Consider deploying application-layer firewalls or endpoint protection that can detect anomalous app behavior resulting from exploitation attempts. 8) For critical environments, consider isolating devices running the vulnerable app or using virtualized environments to contain potential impacts. These steps, combined with continuous monitoring and incident response preparedness, will help reduce the attack surface and limit potential damage.