I’m travelling right now but I noticed that the NetBSD Project announced NetBSD 6.1.5 and 6.0.6 security/bugfix updates of the NetBSD 6.1 and 6.0 release branches on 7th of October. As always it is strongly recommended to update to one of these releases. You can find more information in NetBSD 6.1.5 release notes or NetBSD 6.0.6 release notes. Download them from any mirror using FTP, torrent, AnonCVS or other services in http://www.NetBSD.org/mirrors/.