Example implementations relate to method and system for storing and applying updates to a firmware at runtime of a processor-based system. The processor-based system includes a system management (SM) memory, a platform hardware, a main processor, the firmware, and a hotfix-framework. The hotfix-framework includes a hotfix dispatcher module and a service driver module having one or more boot time resources. The firmware and the hotfix-framework are pre-executed in the SM memory. The platform hardware stores a hotfix-firmware including updates to the firmware into a memory of the processor-based system, and generates an interrupt to direct the main processor into an SM mode and get the hotfix-framework notification about the hotfix-firmware. The hotfix dispatcher module loads the hotfix-firmware from the memory into the SM memory, and executes the hotfix-firmware by utilizing the one or more boot time resources to apply the updates to the firmware at runtime of the processor-based system.