Package: libupnp13 Version: 1:1.8.4-2 Severity: critical According to the changelog upstream version 1.14.0 includes a security fix for CVE-2020-12695 (currently not tracked for pupnp in the debian security tracker).
Please update to 1.14.x. Thanks. I'm also having trouble getting DLNA working with minidlna on one system and vlc on another, with little idea so far why it's not working. Getting an updated libupnp13 with all the fixes they've made may help eliminate some possible causes.