This document itemizes programming language vulnerabilities in Fortran to be avoided in the development of systems where assured behaviour is required for security, safety, mission-critical and business-critical software. In general, this need for assured behaviour is applicable to the software developed, reviewed, or maintained for any application. This document explains how the vulnerabilities catalogued in ISO/IEC 24772-1:2024 “Programming languages -- Avoiding vulnerabilities in programming languages -- Part 1: “Language-independent catalogue of vulnerabilities” manifest in Fortran and documents mechanisms that can be used to avoid the vulnerabilities.