Vulnerability · CVE-2025-7731
Cleartext Transmission of Sensitive Information vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU module allows a remote unauthenticated attacker to obtain cr
Published Sep 1, 2025 · catalog updated Sep 2, 2025 · Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS
Last checked Oct 26, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-7731. EPSS is 0.34%. Act only if a listed version of Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.34%
- Remediation
- Vendor / distro source
- Affected products
- vendor Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS All versions
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS All versionsAll versions
How to fix CVE-2025-7731
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-7731. EPSS is 0.34%. Act only if a listed version of Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS is installed.
Which versions are affected?
Compare what you have installed with Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS All versions All versions. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.34%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 1, 2025 · EUVD
Detected
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.
Sep 2, 2025 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2025-7731
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-7731
30-day exploitation probability 0.34%
first.org - EUVDVulnerability recordEUVD-2025-26323
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 value
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 23, 2026
- CVE.orgOct 22, 2026
- EUVDOct 22, 2026