This file is indexed.

/usr/lib/x86_64-linux-gnu/libupnp.so.6 is in libupnp6 1:1.6.17-1.2.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libupnp.so.6.3.1