CVE-2025-7731

Information Disclosure Vulnerability in MELSEC iQ-F Series CPU module

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.35%Up 0.3 points since Sep 1, 2025

What each source reports

CVE List Score used7.5

Information Disclosure Vulnerability in MELSEC iQ-F Series CPU module

Record: CVE-2025-7731
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-319
Updated: 2026-11-02

EUVDEUVD-2025-263237.5

Record: EUVD-2025-26323
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

NVD7.5

Record: CVE-2025-7731
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-319
Updated: 2026-11-02

Affected products

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History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-7731 is a high vulnerability (CVSS 7.5) in Mitsubishi Electric Corporation Melsec Iq-f Series Fx5s-30mr/ds, published September 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.