CVE-2025-7405 Missing authorization in MELSEC iQ-F Series FX5S-30MR/DS
Remote attackers can read, modify, or stop PLC operations due to missing authentication in MODBUS/TCP, impacting industrial control systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7405?
CVE-2025-7405 is a high-severity missing authorization vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/DS, published on 1 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to read or write the device values of the product and stop the operation of the programs, since MODBUS/TCP in the products does not have authentication features.
Weakness: CWE-306
Which versions are affected by CVE-2025-7405?
How do I fix CVE-2025-7405?
No fix has been published for CVE-2025-7405 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-7405 being exploited?
There is no known exploitation of CVE-2025-7405 in the wild and no public exploit code.