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Siemens SIMATIC S7-1500 CPU 1518 MFP Improper Input Validation (CVE-2025-39964)

medium Tenable OT Security Plugin ID 505809

Version 1.4

Sep 19, 2026, 6:50 AM

  • CISA reference
  • CVSS metrics ("CVSSv2 score" set to 4.6)
  • CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C")
  • CVSS metrics ("CVSSv3 score" set to 5.5)
  • CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H")
  • CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:F/RL:OF/RC:C")
  • CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:F/RL:O/RC:C")
  • CVSSv2 severity (based on CVE-2025-39964, severity increased from "Low" to "Medium")
  • CVSSv3 severity (based on None, severity increased from "Low" to "Medium")
  • Exploit attributes ("Exploit available" set to "True")
  • Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available")

Plugin Feed: 202609190650

Version 1.3

Jul 30, 2026, 10:03 PM

  • Plugin metadata (Add icsa reference)

Plugin Feed: 202607302203

Version 1.2

Jul 28, 2026, 1:30 PM

  • CVSS metrics ("CVSSv2 score" set to 1.7)
  • CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P")
  • CVSS metrics ("CVSSv3 score" set to 3.3)
  • CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L")
  • CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:OF/RC:C")
  • CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:O/RC:C")
  • CVSSv2 severity (based on CVE-2025-39964, severity decreased from "High" to "Low")
  • CVSSv3 severity (based on None, severity decreased from "Medium" to "Low")

Plugin Feed: 202607281330

Version 1.1

Jul 27, 2026, 9:02 PM

  • New

Plugin Feed: 202607272102

* Changelogs are generally available for changes made after Nov 1, 2022