CVE-2025-7731 Information Disclosure Vulnerability in MELSEC iQ-F Series CPU module
Remote attackers can intercept cleartext SLMP messages to steal credentials, allowing them to read/write device values and stop program operations.
- 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-2025-7731?
CVE-2025-7731 is a high-severity 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
Cleartext Transmission of Sensitive Information vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to obtain credential information by intercepting SLMP communication messages, and read or write the device values of the product and stop the operations of programs by using the obtained credential information.
Weakness: CWE-319
Which versions are affected by CVE-2025-7731?
How do I fix CVE-2025-7731?
No fix has been published for CVE-2025-7731 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-7731 being exploited?
There is no known exploitation of CVE-2025-7731 in the wild and no public exploit code.