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    CVE-2026-63020

    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.

    Published:Sep 2, 2026
    Last Modified:Sep 15, 2026
    EPS:Sep 2, 2026
    EPSS Score:0.00186
    CVSS Score:3.1

    Affected Products

    Vendor
    F5
    Product
    Big-ip
    Vendor
    F5
    Product
    Big-ip Access Policy Manager
    Vendor
    F5
    Product
    Big-ip Advanced Firewall Manager
    Vendor
    F5
    Product
    Big-ip Advanced Web Application Firewall
    Vendor
    F5
    Product
    Big-ip Analytics
    Vendor
    F5
    Product
    Big-ip Application Acceleration Manager
    Vendor
    F5
    Product
    Big-ip Application Security Manager
    Vendor
    F5
    Product
    Big-ip Application Visibility And Reporting
    Vendor
    F5
    Product
    Big-ip Automation Toolchain
    Vendor
    F5
    Product
    Big-ip Carrier-grade Nat
    Vendor
    F5
    Product
    Big-ip Container Ingress Services
    Vendor
    F5
    Product
    Big-ip Ddos Hybrid Defender
    Vendor
    F5
    Product
    Big-ip Domain Name System
    Vendor
    F5
    Product
    Big-ip Edge Gateway
    Vendor
    F5
    Product
    Big-ip Fraud Protection Service
    Vendor
    F5
    Product
    Big-ip Global Traffic Manager
    Vendor
    F5
    Product
    Big-ip Link Controller
    Vendor
    F5
    Product
    Big-ip Local Traffic Manager
    Vendor
    F5
    Product
    Big-ip Policy Enforcement Manager
    Vendor
    F5
    Product
    Big-ip Ssl Orchestrator
    Vendor
    F5
    Product
    Big-ip Webaccelerator
    Vendor
    F5
    Product
    Big-ip Websafe

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High