CVE-2025-31283: Broken Access Control in Trend Vision One

The primary impact of CVE-2025-31283 lies in the potential for privilege escalation. A compromised administrator could leverage this vulnerability to create new user accounts and then modify those accounts' roles, granting them unauthorized access to sensitive data and system functions. This could lead to data breaches, system manipulation, and denial of service. While the vulnerability is no longer considered active, legacy installations or misconfigured systems might still be susceptible if the backend service fix was not properly applied.

1. Reserved2025-03-27
2. Published2025-04-02
3. Modified2026-02-26
4. EPSS updated2026-03-23

Although the vulnerability is reported as inactive due to a backend service fix, it's crucial to verify the fix's implementation and maintain robust access control practices. Review all user roles and permissions within Trend Vision One, ensuring that only authorized personnel have access to sensitive functions. Regularly audit user accounts and activity logs for any suspicious behavior. Consider implementing multi-factor authentication (MFA) to add an extra layer of security. After verifying the backend service fix, confirm by reviewing the Trend Micro security advisory and confirming the version deployed is beyond the affected range.