Cisco IOS XE Software for Catalyst 3650 Catalyst 3850 Series Switches DoS (cisco-sa-cat3k-dos-ZZA4Gb3r)

high Nessus Plugin ID 182351


The remote device is missing a vendor-supplied security patch


According to its self-reported version, Cisco IOS-XE Software is affected by a vulnerability.

- A vulnerability in Cisco IOS XE Software for Cisco Catalyst 3650 and Catalyst 3850 Series Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper resource management when processing traffic that is received on the management interface. An attacker could exploit this vulnerability by sending a high rate of traffic to the management interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. (CVE-2023-20033)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwe60256

See Also

Plugin Details

Severity: High

ID: 182351

File Name: cisco-sa-cat3k-dos-ZZA4Gb3r-iosxe.nasl

Version: 1.4

Type: combined

Family: CISCO

Published: 9/29/2023

Updated: 5/28/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 4.4


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2023-20033


Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version, Host/Cisco/IOS-XE/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/27/2023

Vulnerability Publication Date: 9/27/2023

Reference Information

CVE: CVE-2023-20033

CISCO-SA: cisco-sa-cat3k-dos-ZZA4Gb3r

IAVA: 2023-A-0510-S