Unspecified vulnerability on the HP LaserJet Pro P1102w, P1606dn, M1212nf MFP, M1213nf MFP, M1214nfh MFP, M1216nfh MFP, M1217nfw MFP, M1218nfs MFP, and CP1025nw with firmware before 2013-07-26 20130703 allows remote attackers to modify data via unknown vectors.