| Vendor – Model | Access Type | Username | Password | 
| 3com – 3c16405 | Multi | n/a | (none) | 
| 3com – 3c16405 | Console | Administrator | (none) | 
| 3com – 3C16405 | Multi | admin | (none) | 
| 3com – 3c16405 | Console | Administrator | (none) | 
| 3COM – 3C16406 | Multi | admin | (none) | 
| 3COM – 3C16450 | Multi | admin | (none) | 
| 3COM – 3Com SuperStack 3 Switch 3300XM |  | security | security | 
| 3com – 3CRADSL72 | Multi | (none) | 1234admin | 
| 3Com – 3CRWDR100A-72 | HTTP | admin | 1234admin | 
| 3com – 812 | HTTP | Administrator | admin | 
| 3com – CB9000 / 4007 | Console | Type User: FORCE | (none) | 
| 3COM – CellPlex | Telnet | tech | tech | 
| 3COM – cellplex | Telnet | admin | admin | 
| 3COM – cellplex |  | operator | (none) | 
| 3COM – CellPlex | HTTP | admin | synnet | 
| 3COM – CellPlex | Telnet | root | (none) | 
| 3COM – CellPlex | Telnet | tech | (none) | 
| 3COM – CellPlex | Telnet | admin | admin | 
| 3com – CellPlex | Telnet | tech | tech | 
| 3com – cellplex | Multi | admin | admin | 
| 3com – CellPlex | Telnet | root | (none) | 
| 3com – cellplex | Telnet | operator | (none) | 
| 3com – cellplex | Multi | admin | admin | 
| 3com – cellplex | Multi | n/a | (none) | 
| 3com – cellplex | Multi | admin | admin | 
| 3com – CellPlex | Telnet | tech | (none) | 
| 3COM – CoreBuilder | Telnet | debug | synnet | 
| 3COM – CoreBuilder | Telnet | tech | tech | 
| 3COM – CoreBuilder | Telnet | n/a | admin | 
| 3COM – CoreBuilder | Telnet | n/a | (none) | 
| 3com – corebuilder |  | defug | synnet | 
| 3COM – HiPerACT | Telnet | admin | (none) | 
| 3com – HiPerACT | Telnet | admin | (none) | 
| 3com – HiPerACT | Telnet | admin | (none) | 
| 3COM – HiPerARC | Telnet | adm | (none) | 
| 3COM – HiPerARC | Telnet | adm | (none) | 
| 3Com – Internet Firewall | HTTP | admin | password | 
| 3COM – LANplex | Telnet | debug | synnet | 
| 3COM – LANplex | Telnet | tech | tech | 
| 3COM – LANplex | Telnet | tech | (none) | 
| 3com – LANplex | Telnet | n/a | admin | 
| 3COM – LinkSwitch | Telnet | tech | tech | 
| 3COM – NetBuilder | SNMP |  | ILMI | 
| 3COM – Netbuilder | Multi | admin | (none) | 
| 3COM – NetBuilder |  | (none) | admin | 
| 3com – Netbuilder | Multi | admin | (none) | 
| 3COM – Netbuilder | HTTP | Root | (none) | 
| 3com – office connect | Multi | admin | (none) | 
| 3COM – Office Connect ISDN Routers | Telnet | n/a | PASSWORD | 
| 3COM – Office Connect ISDN Routers | Telnet? | n/a | PASSWORD | 
| 3com – officeconnect | Multi | n/a | (none) | 
| 3com – officeconnect | Multi | admin | (none) | 
| 3COM – OfficeConnect 812 ADSL | Multi | adminttd | adminttd | 
| 3com – OfficeConnect 812 ADSL | Multi | admin | (none) | 
| 3com – OfficeConnect 812 ADSL | Multi | admin | (none) | 
| 3COM – OfficeConnect 812 ADSL | Multi | Administrator | admin | 
| 3COM – OfficeConnect ADSL Wireless 11g   Firewall Router | HTTP | (none) | admin | 
| 3com – OfficeConnect Wireless 11g Cable/DSL   Gateway | HTTP | (none) | admin | 
| 3com – OfficeConnect Wireless 11g Cable/DSL   Gateway | HTTP | (none) | admin | 
| 3Com – Shark Fin | HTTP | User | Password | 
| 3com – SS III Switch | Telnet | recovery | recovery | 
| 3com – SS III Switch | Telnet | recovery | recovery | 
| 3com – super | Telnet | admin | (none) | 
| 3COM – SuperStack 3 | Multi | admin | (none) | 
| 3COM – SuperStack 3 | Multi | monitor | monitor | 
| 3COM – SuperStack 3 | Multi | manager | manager | 
| 3COM – superstack II |  | 3comcso | RIP000 | 
| 3com – superstack II Netbuilder | Multi | n/a | (none) | 
| 3COM – SuperStack II Switch | Telnet | debug | synnet | 
| 3COM – SuperStack II Switch | Telnet | tech | tech | 
| 3COM – SuperStack II Switch | Telnet | tech | tech | 
| 3com – Switch | Multi | admin | admin | 
| 3com – Switch | Multi | admin | admin | 
| 3COM – Wireless AP | Multi | admin | comcomcom |