Siemens RUGGEDCOM Devices Inadequate Encryption Strength (CVE-2021-37209)

medium Tenable OT Security Plugin ID 504810

Version 1.4

Mar 12, 2026, 10:32 AM

  • CVSS metrics ("CVSSv2 score" set to 4.0)
  • CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N")
  • CVSS metrics ("CVSSv3 score" set to 6.5)
  • CVSS metrics ("CVSSv3 vector" set to "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N")
  • CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:OF/RC:C")
  • CVSSv2 severity (based on CVE-2021-37209, severity decreased from "High" 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: 202603121032

Version 1.3

Feb 12, 2026, 3:03 PM

  • Plugin metadata (Update cisa reference and solution)

Plugin Feed: 202602121503

Version 1.2

Nov 20, 2025, 1:14 AM

  • Plugin metadata

Plugin Feed: 202511200114

Version 1.1

Nov 18, 2025, 9:44 PM

  • New

Plugin Feed: 202511182144

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