This report presents the results of desktop research and the analysis of currently used cybersecurity Risk Management (RM) frameworks and methodologies with the potential for interoperability. The identification of the most prominent RM frameworks and methodologies was based on a systematic survey of related risk management approaches adopted in different contexts (including industry, business, government, academia, etc), at national, international, and sectoral levels. This collection of identified frameworks and methodologies includes well-known and widely used RM standards that provide high-level guidelines for risk management processes that can be applied in all types of organizations. This report also describes the main characteristics and features of each one of the RM frameworks and methodologies identified. Based on this analysis, a basic set of interoperability features is derived.