| Lexmark | Xs795 Firmware | 3 |
| Lexmark | Xs796 Firmware | 3 |
| Lexmark | Xs798 Firmware | 3 |
| Lexmark | Xs79x Firmware | 2 |
| Lexmark | Xs925 Firmware | 5 |
| Lexmark | Xs92x Firmware | 1 |
| Lexmark | Xs950 Firmware | 3 |
| Lexmark | Xs955 Firmware | 3 |
| Lexmark | Xs95x Firmware | 2 |
| Debian | Xsabre | 2 |
| Apple | Xsan | 2 |
| Oliver Rauch | Xsane | 1 |
| Bitrix | Xscan | 1 |
| Xscreensaver | Xscreensaver | 8 |
| Xscreensaver Project | Xscreensaver | 8 |
| Ecommercesoft | Xse Shopping Cart | 1 |
| Apple | Xserve Lights-out Management | 1 |
| Nipun Jain | Xserver | 7 |
| X.org | Xserver | 7 |
| Netsarang | Xshell | 3 |
| Wolfpack Development | Xshipwars | 1 |
| Xshisen | Xshisen | 2 |
| Xsltcms.org Project | Xsltcms.org | 2 |
| Michael Bischoff | Xsok | 2 |
| Russound | Xsourceplayer 777d Firmware | 1 |
| Mono | Xsp | 2 |
| Fabricio Zuardi | Xspf Player Plugin | 1 |
| Xsplit | Xsplit Express Video Editor | 1 |
| Enterasys | Xsr-1805 | 1 |
| Enterasys | Xsr-1850 | 1 |
| Enterasys | Xsr-3000 | 1 |
| Xss Hunter Express Project | Xss Hunter Express | 1 |
| Joomla | Xstandard | 1 |
| Xstream Project | Xstream | 2 |
| Xceedium | Xsuite | 3 |
| Xsupplicant | Xsupplicant | 2 |
| Xt-commerce | Xt-commerce | 3 |
| Xt-commerce | Xt-commerce Community Made Shopping | 1 |
| Xoops | Xt-conteudo Module | 2 |
| Dreaxteam | Xt-news | 2 |
| Xt-stats | Xt-stats | 1 |
| Gambio | Xt\ | 1 |
| Xt-commerce | Xt\ | 4 |
| Netplex-tech | Xtacacsd | 1 |
| Xtell | Xtell | 3 |
| Xtendcu | Xtendcu Mobile | 0 |
| Invisible-island | Xterm | 5 |
| X.org | Xterm | 11 |
| Xterm | Xterm | 11 |
| Novell | Xtier Framework | 1 |
| Xtokkaetama | Xtokkaetama | 2 |
| Percona | Xtrabackup | 6 |
| Percona | Xtradb Cluster | 3 |
| Xtradius | Xtradius | 2 |
| Artisoft | Xtramail | 1 |
| Dell | XtremIO | 2 |
| Dell | XtremIO X2 | 1 |
| Pensacola Web Designs | Xtreme Asp Photo Gallery | 1 |
| Gigabyte | Xtreme Gaming Engine | 4 |
| Xtreme Scripts | Xtreme Topsites | 3 |
| Pensacola Web Designs | Xtremeasp Photogallery | 4 |
| Xtremelocator | Xtremelocator | 1 |
| Xtremerat | Xtremerat | 1 |
| Xtrlock | Xtrlock | 2 |
| Xtrlock Project | Xtrlock | 1 |
| Dave Lawrence | Xtux | 1 |
| Xuebook | Xuebook | 1 |
| Xunfeng Project | Xunfeng | 2 |
| Xunruicms | Xunruicms | 6 |
| Baidu | Xuperchain | 1 |
| Persits | Xupload | 3 |
| John Bradley | Xv | 4 |
| Xv Project | Xv | 1 |
| Branden Robinson | Xvfb-run | 1 |
| Xvid | Xvid | 3 |
| Sun | Xvm Virtualbox | 3 |
| Dahuasecurity | Xvr-4x04 Firmware | 1 |
| Dahuasecurity | Xvr-4x08 Firmware | 1 |
| Dahuasecurity | Xvr-5x04 Firmware | 1 |
| Dahuasecurity | Xvr-5x08 Firmware | 1 |
| Dahuasecurity | Xvr-5x16 Firmware | 1 |
| Dahuasecurity | Xvr-7x16 Firmware | 1 |
| Dahuasecurity | Xvr-7x32 Firmware | 1 |
| Dahuasecurity | Xvr4104c-x Firmware | 1 |
| Dahuasecurity | Xvr4104hs-x Firmware | 1 |
| Dahuasecurity | Xvr4108c-x Firmware | 1 |
| Dahuasecurity | Xvr4108hs-x Firmware | 1 |
| Dahuasecurity | Xvr4116hs-x Firmware | 1 |
| Dahuasecurity | Xvr4xxx Firmware | 1 |
| Dahuasecurity | Xvr5104h-i2 Firmware | 1 |
| Dahuasecurity | Xvr5104he-i2 Firmware | 1 |
| Dahuasecurity | Xvr5104hs-i2 Firmware | 1 |
| Dahuasecurity | Xvr5108c-x Firmware | 1 |
| Dahuasecurity | Xvr5108h-i2 Firmware | 1 |
| Dahuasecurity | Xvr5108he-i2 Firmware | 1 |
| Dahuasecurity | Xvr5108hs-i2 Firmware | 1 |
| Dahuasecurity | Xvr5116h-i2 Firmware | 1 |
| Dahuasecurity | Xvr5116he-i2 Firmware | 1 |
| Dahuasecurity | Xvr5116hs-i2 Firmware | 1 |
| Dahuasecurity | Xvr5216a-i2 Firmware | 1 |
