Detections
Analytics

Cisco NX-OS Software system login block-for Denial of Service (CVE-2021-1590)

medium Tenable OT Security Plugin ID 501363

Version 1.3

Sep 21, 2026, 3:50 PM

  • Plugin metadata (detection updated)

Plugin Feed: 202609211550

Version 1.2

Oct 16, 2025, 4:39 PM

  • Plugin metadata (detection updated)

Plugin Feed: 202510161639

Version 1.1

Jul 26, 2023, 2:10 PM

  • CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:OF/RC:C". "CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:O/RC:C")
  • Exploit attributes ("Exploit available" set to "False")

Plugin Feed: 202307261410

Version 1.0

Jul 25, 2023, 7:12 PM

  • New

Plugin Feed: 202307251912

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