CVE-2026-63020

LOW CVSS 4.0: 2.3 EPSS 0.23%
Updated Sep 15, 2026
F5
Parameter Value
CVSS 2.3 (LOW)
Affected Versions 17.1.0 — 21.1.0
Type CWE-451
Vendor F5
Public PoC No

A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof error messages  Impact: An attacker may trick authenticated BIG-IP users into accessing malicious links and reflect a spoofed error message in the victim's BIG-IP Configuration utility web browser session. This is a control plane issue; there is no data plane exposure. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 63

Configuration From (including) Up to (excluding)
F5 Big-Ip_Access_Policy_Manager
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Access_Policy_Manager
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Advanced_Firewall_Manager
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Advanced_Firewall_Manager
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Advanced_Web_Application_Firewall
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Advanced_Web_Application_Firewall
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Analytics
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Analytics
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Application_Acceleration_Manager
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Application_Acceleration_Manager
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Application_Security_Manager
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Application_Security_Manager
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Application_Visibility_And_Reporting
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Application_Visibility_And_Reporting
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Automation_Toolchain
cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Automation_Toolchain
cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Carrier-Grade_Nat
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Carrier-Grade_Nat
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Container_Ingress_Services
cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Container_Ingress_Services
cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Ddos_Hybrid_Defender
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Ddos_Hybrid_Defender
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Domain_Name_System
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Domain_Name_System
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Edge_Gateway
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Edge_Gateway
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Fraud_Protection_Service
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Fraud_Protection_Service
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Global_Traffic_Manager
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Global_Traffic_Manager
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Link_Controller
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Link_Controller
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Local_Traffic_Manager
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Local_Traffic_Manager
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Policy_Enforcement_Manager
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Policy_Enforcement_Manager
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Ssl_Orchestrator
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Ssl_Orchestrator
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Webaccelerator
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Webaccelerator
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Websafe
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
17.1.0 <= 17.1.3
F5 Big-Ip_Websafe
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
17.5.0 <= 17.5.1
F5 Big-Ip_Access_Policy_Manager
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Advanced_Firewall_Manager
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Advanced_Web_Application_Firewall
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Analytics
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Application_Acceleration_Manager
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Application_Security_Manager
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Application_Visibility_And_Reporting
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Automation_Toolchain
cpe:2.3:a:f5:big-ip_automation_toolchain:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Carrier-Grade_Nat
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Container_Ingress_Services
cpe:2.3:a:f5:big-ip_container_ingress_services:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Ddos_Hybrid_Defender
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Domain_Name_System
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Edge_Gateway
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Fraud_Protection_Service
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Global_Traffic_Manager
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Link_Controller
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Local_Traffic_Manager
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Policy_Enforcement_Manager
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Ssl_Orchestrator
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Webaccelerator
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0
F5 Big-Ip_Websafe
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
21.0.0 <= 21.1.0