ncsc.gov[.]uk/news/apt28-exploit-routers-to-enable-dns-hijacking-operations
From the UK's National Cyber Security Centre, the report details how "Russian cyber actor APT28" is attempting to take over a selection of routers with known vulnerabilities, listing those models it has confirmed are being compromised. Unfortunately it does not go into whether patches are available to fix those vulnerabilities -- all you can do is make sure the latest updates are installed.