I notice that the package seems to be unmaintained and potentially vulnerable. And what a hel… What does that package does if there are usual qemu with riscv64 target? Reproducible: Always
What is purpose of the package?
Which vulnerabilities do you mean? Any CVE, or upstream report? Please add them here, if they are public.
The package is maintained. It simply contains the riscv64 emulator. It is used by the riscv64 team to create stage-3 images that automatically include an appropriate interpreter to run said images on amd64. As such security implications are also fairly minimal - the emulator is simply used to emulate binaries for the riscv64 architecture, not to wall off virtualized guests.