Firmware update patch

A computing system is provided, including a processor and memory storing instructions that, when executed, cause the processor to store a firmware update patch in a runtime buffer included in the memory. The runtime buffer may be accessible by firmware and an operating system of the computing system. The processor may perform a first verification check on the firmware update patch. When the firmware update patch passes the first verification check, the processor may copy the firmware update patch to a system management random access memory (SMRAM) buffer included in the memory. The SMRAM buffer may be accessible by the firmware and inaccessible by the operating system. The processor may perform a second verification check on the copy of the firmware update patch. When the copy of the firmware update patch passes the second verification check, the processor may execute the copy of the firmware update patch.