CVE-2025-3755 Information Disclosure and Denial-of-Service(DoS) Vulnerability in MELSEC iQ-F Series CPU module
Remote unauthenticated attackers can read sensitive information or cause denial-of-service conditions on Mitsubishi MELSEC iQ-F CPU modules via crafted packets.
- 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-2025-3755?
CVE-2025-3755 is a critical vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5S-30MR/DS, published on 29 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules allows a remote unauthenticated attacker to read information in the product, to cause a Denial-of-Service (DoS) condition in MELSOFT connection, or to stop the operation of the CPU module (causing a DoS condtion on the CPU module), by sending specially crafted packets. The product is needed to reset for recovery.
Weakness: CWE-1285
Which versions are affected by CVE-2025-3755?
How do I fix CVE-2025-3755?
No fix has been published for CVE-2025-3755 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-3755 being exploited?
There is no known exploitation of CVE-2025-3755 in the wild and no public exploit code.
Sources
Also known as GHSA-7r2m-8qrj-39h4.