Exposure of Sensitive Information to an Unauthorized Actor
The files utility in Empire Server before 4.3.15 discloses the world creation time, which makes it easier for attackers to determine the PRNG seed.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.