Mitsubishi Electric MELSEC iQ-R / iQ-F Series PLC (CPU Module with Built-In Ethernet) — Default Password
Default username and password for the Mitsubishi Electric MELSEC iQ-R / iQ-F Series PLC (CPU Module with Built-In Ethernet): (blank) / (blank). Learn how to log in and how to change the default credentials.
MELSEC iQ-R (R04CPU, R08CPU, R16CPU, R32CPU, R120CPU) and iQ-F (FX5U, FX5UC, FX5UJ) PLCs ship with security functions (CPU module authentication) disabled. GX Works3 / MELSOFT connects to TCP 5007 without a password and can read/write programs and device memory until security is explicitly enabled in GX Works3.
| Username | Password | Access | Notes |
|---|---|---|---|
(blank / none) | (blank / none) | API | Security functions disabled by default; connect via GX Works3 / MELSOFT iQ Works on TCP 5007 without credential until security is explicitly configured |
- Source
- CISA ICS Advisory
Responsible use
This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.
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