| Organizr | Organizr | 1 |
| Orientdb | Orientdb | 1 |
| Openshift | Origin | 2 |
| Ea | Origin Client | 1 |
| Originprotocol | Origin Website | 1 |
| Redhat | Origin-Aggregated-Logging | 1 |
| Fico | Origination Manager Decision | 1 |
| Orinoco | Orinoco Wavelan | 1 |
| Orion | Orion Application Server | 1 |
| Orionserver | Orion Application Server | 2 |
| Solarwinds | Orion Network Performance Monitor | 2 |
| Solarwinds | Orion Platform | 3 |
| Solarwinds | Orion Web Performance Monitor | 2 |
| Meafinancial | Oritani Mobile Banking | 1 |
| Oroinc | Orocommerce | 2 |
| Oroinc | Oroplatform | 3 |
| Snapone | Orvc | 1 |
| Ibm | Os 400 | 2 |
| Apple | Os X Server | 3 |
| Ibm | Os2 Ftp Server | 1 |
| Hitachi | Osas/Ft/W | 1 |
| Indymedia | Oscailt | 1 |
| Xoev | Osci Transport Library | 1 |
| Osclass | Osclass | 1 |
| Oscommerce | Oscommerce | 49 |
| Oscss | Oscss | 1 |
| Darrens 5-Dollar Script Archive | Osdate | 1 |
| Tufat | Osdate | 1 |
| Oskarshamnsliv Project | Oskarshamnsliv | 1 |
| Openstack | Oslo | 1 |
| Openstack | Oslo.Middleware | 1 |
| B4After | Osmapper | 1 |
| Linuxfoundation | Osquery | 1 |
| Oracle | Oss Support Tools | 3 |
| Ossec | Ossec | 2 |
| Alienvault | Ossim | 1 |
| Enhancesoft | Osticket | 7 |
| Osticket | Osticket | 4 |
| Ohio State University | Osu Httpd | 2 |
| Otrs | Otrs | 28 |
| Otrs | Otrs Itsm | 1 |
| Otscms | Otscms | 1 |
| Ottoman | Ottoman | 1 |
| 2Coolcode | Our Space | 1 |
| Outblaze | Outblaze Email | 1 |
| Pocketmags | Outdoor Design And Living | 1 |
| Outgun | Outgun | 1 |
| Getoutline | Outline | 2 |
| Microsoft | Outlook | 33 |
| Microsoft | Outlook 2016 | 1 |
| Microsoft | Outlook Express | 20 |
| Microsoft | Outlook Web Access | 2 |
| Agnitum | Outpost Firewall | 1 |
| Oracle | Outside In Technology | 31 |
| Overkill | Overkill | 1 |
| Blizzard | Overwatch | 1 |
| Ovidentia | Ovidentia | 2 |
| Ovirt | Ovirt | 5 |
| Ovirt | Ovirt-Engine | 2 |
| Redhat | Ovirt-Engine | 3 |
| Ovirt | Ovirt-Engine-Cli | 1 |
| Ovirt-Engine-Sdk-Python Project | Ovirt-Engine-Sdk-Python | 1 |
| Ovn | Ovn-Kubernetes | 1 |
| Modsecurity | Owasp Modsecurity Core Rule Set | 5 |
| Owfs | Owfs | 1 |
| Fools Workshop | Owls Workshop | 1 |
| Owncloud | Owncloud | 33 |
| Owncloud | Owncloud Desktop Client | 1 |
| Ox Project | Ox | 1 |
| Open-Xchange | Ox App Suite | 6 |
| Open-Xchange | Ox Guard | 2 |
| Huawei | Oxfords-An00A Firmware | 3 |
| Oxidforge | Oxid Eshop | 1 |
| Monoxide0184 | Oxide Webserver | 1 |
| Oxidized Web Project | Oxidized Web | 1 |
| O2Php.Com | Oxygen | 1 |
| Sync | Oxygen Content Fusion | 1 |
| Sync | Oxygen Xml Web Author | 1 |
| Oneplus | Oxygenos | 4 |
| Ozeki | Ozeki Ng Sms Gateway | 1 |
| Ozjournals | Ozjournals | 2 |
| Apache | Ozone | 2 |
| Rocomotion | P Forum | 1 |
| Zyxel | P-2602Hw-D1A | 1 |
| Zyxel | P-660Hn-51 Firmware | 1 |
| Zyxel | P-660Hw D3 | 1 |
| Zyxel | P-663Hn-51 Firmware | 1 |
| P-News | P-News | 1 |
| Planerd.Net | P-News | 1 |
| Adbglobal | P.Dga4001N Firmware | 1 |
| Leagoo | P1 Firmware | 1 |
| Haier | P10 Firmware | 1 |
| Huawei | P10 Firmware | 5 |
| Huawei | P10 Lite Firmware | 1 |
| Huawei | P10 Plus Firmware | 6 |
| Zero One Tech | P100S | 1 |
| P11-Kit Project | P11-Kit | 1 |
| Huawei | P20 Firmware | 7 |
| Huawei | P20 Pro Firmware | 4 |
| Zyxel | P2000W Version 2 Voip Wifi Phone | 1 |
