Cisco Nexus 3000 and 9000 Series Switches IS-IS Protocol Denial of Service (CVE-2023-20169)

Version 1.4 Oct 16, 2025, 4:39 PM Plugin metadata (detection updated) Plugin Feed: 202510161639
Version 1.3 Dec 4, 2024, 7:52 PM New Plugin Feed: 202412041952
Version 1.2 Dec 25, 2023, 2:08 PM CVSS metrics ("CVSSv3 score" set to 7.4. "CVSSv3 vector" set to "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H") CVSSv3 severity (based on None, severity increased from "Medium" to "High") Plugin Feed: 202312251408
Version 1.1 Sep 20, 2023, 4:09 PM CVSS metrics ("CVSSv2 score" set to 6.1. "CVSSv2 vector" set to "CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C") 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") CVSSv2 severity (based on CVE-2023-20169, severity decreased from "High" to "Medium") Exploit attributes ("Exploit available" set to "False") Plugin Feed: 202309201609
Version 1.0 Sep 19, 2023, 5:19 PM New Plugin Feed: 202309191719

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