scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.
No PoCs from references.
- https://github.com/ARPSyndicate/cvemon
- https://github.com/Morton-L/BoltWrt
- https://github.com/Morton-Li/BoltWrt
- https://github.com/frostworx/revopoint-pop2-linux-info