CVE-2023-20226
highpriority · track · 30EPSS 0.009 · 61 %ileDEEURUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixed17.10.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.10.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.7.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.7.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.7.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.8.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.8.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.9.1cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.9.1acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.9.2cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed17.9.2acisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–8.6
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (49)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-2509Cisco IOS XE: Mehrere SchwachstellenDeutsch2023-09-27csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder beliebigen Code auszuführen.
- cisco-sa-appqoe-utd-dos-p8O57p5yCisco IOS XE Software Application Quality of Experience and Unified Threat Defense Denial of Service Vulnerability2023-09-27csaf · cisco_csafUS
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the September 2023 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2023 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74916"].
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-20226/cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appqoe-utd-dos-p8O57p5ycnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appqoe-utd-dos-p8O57p5yenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appqoe-utd-dos-p8O57p5yVendor Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan