CVE-2025-1698 is a vulnerability identified in the Motorola Razr 40 Ultra smartphone, specifically within the fingerprint sensor service. The flaw is categorized as a NULL pointer dereference (CWE-476), which occurs when the software attempts to access or dereference a pointer that has not been initialized or is set to NULL. This can lead to a crash or denial of service (DoS) condition. The vulnerability allows a local attacker with limited privileges (low privileges) to cause the fingerprint sensor service to crash by triggering a null pointer exception. The attack requires some user interaction, but no authentication is needed beyond local access. The CVSS v4.0 base score is 2.4, indicating a low severity level, primarily because the impact is limited to denial of service without compromising confidentiality, integrity, or availability beyond the fingerprint service itself. There are no known exploits in the wild, and no patches have been published at the time of this report. The affected product is the Motorola Razr 40 Ultra, a foldable smartphone model. The vulnerability does not affect other Motorola devices or services beyond the fingerprint sensor service on this specific model. The issue is local, meaning remote exploitation is not possible, and the scope is limited to the device’s fingerprint sensor functionality. This vulnerability could cause temporary disruption of biometric authentication, potentially forcing users to rely on alternative authentication methods until the device is rebooted or the service is restored.

For European organizations, the impact of CVE-2025-1698 is relatively limited but still notable in environments where Motorola Razr 40 Ultra devices are used for secure access or authentication. The denial of service on the fingerprint sensor service could disrupt user authentication workflows, leading to inconvenience and potential delays in accessing corporate resources. In sectors where biometric authentication is critical for compliance or security policies (e.g., finance, healthcare, government), this could increase operational risk or reduce security posture temporarily. However, since the vulnerability does not allow privilege escalation, data leakage, or remote exploitation, the broader impact on confidentiality and integrity is minimal. The low CVSS score reflects this limited impact. Organizations relying heavily on Motorola Razr 40 Ultra devices for secure mobile access should be aware of the potential for service disruption and plan for fallback authentication methods. The lack of known exploits reduces immediate risk, but the vulnerability should be addressed proactively to prevent future exploitation or escalation.

1. Monitor for official patches or firmware updates from Motorola addressing this vulnerability and apply them promptly once available. 2. Until a patch is released, implement device usage policies that limit the use of Motorola Razr 40 Ultra devices for critical authentication tasks or sensitive operations. 3. Educate users on fallback authentication methods (e.g., PIN, password) in case the fingerprint sensor service becomes unavailable. 4. Restrict local access to devices to trusted users only, minimizing the risk of local attackers exploiting this vulnerability. 5. Implement mobile device management (MDM) solutions to monitor device health and detect abnormal service crashes or repeated fingerprint sensor failures. 6. Encourage users to reboot devices if fingerprint sensor service disruption occurs to restore functionality temporarily. 7. Conduct regular security awareness training highlighting the importance of reporting device malfunctions that could indicate exploitation attempts.