Detections
Analytics

Siemens SIMATIC Devices Improper Input Validation (CVE-2025-21756)

high Tenable OT Security Plugin ID 503431

Version 1.4

Feb 14, 2026, 5:17 PM

  • Plugin metadata (Add icsa link and solution)

Plugin Feed: 202602141717

Version 1.3

Oct 30, 2025, 2:57 PM

  • CVSS metrics ("CVSSv3 score" set to 7.8)
  • CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H")
  • CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:H/RL:O/RC:C")
  • CVSSv3 severity (based on None, severity increased from "Medium" to "High")
  • Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available")
  • Exploit attributes ("Exploited by malware" set to "True")

Plugin Feed: 202510301457

Version 1.2

Oct 29, 2025, 8:57 PM

  • New

Plugin Feed: 202510292057

Version 1.1

Oct 27, 2025, 3:15 PM

  • New

Plugin Feed: 202510271515

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