An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41 Kernel 5.1 before 05.16.41 Kernel 5.2 before 05.26.41 Kernel 5.3 before 05.35.41 and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.