Cisco IOS XE Software Application Quality of Experience Unified Threat Defense DoS (cisco-sa-appqoe-utd-dos-p8O57p5y)

high Nessus Plugin ID 182200


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 Application Quality of Experience (AppQoE) and Unified Threat Defense (UTD) on Cisco IOS XE Software 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 the mishandling of a crafted packet stream through the AppQoE or UTD application. An attacker could exploit this vulnerability by sending a crafted packet stream through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. (CVE-2023-20226)

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


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwd67335

See Also

Plugin Details

Severity: High

ID: 182200

File Name: cisco-sa-appqoe-utd-dos-p8O57p5y-iosxe.nasl

Version: 1.2

Type: combined

Family: CISCO

Published: 9/29/2023

Updated: 4/19/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 3.6


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-2023-20226


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/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-2023-20226

CISCO-SA: cisco-sa-appqoe-utd-dos-p8O57p5y

IAVA: 2023-A-0510-S