Memu Play 6.0.7 contains an insecure file permissions vulnerability that allows low-privilege users to escalate privileges by replacing the MemuService.exe executable. Attackers can rename and overwrite MemuService.exe in the installation directory with a malicious executable, which executes with system-level privileges when the service restarts after a computer reboot.
An issue was discovered in Microvirt MEmu all versions prior to 7.0.2. A guest Android operating system inside the MEmu emulator contains a /system/bin/systemd binary that is run with root privileges on startup (this is unrelated to Red Hat's systemd init program, and is a closed-source proprietary tool that seems to be developed by Microvirt). This program opens TCP port 21509, presumably to receive installation-related commands from the host OS. Because everything after the installer:uninstall command is concatenated directly into a system() call, it is possible to execute arbitrary commands by supplying shell metacharacters.