CVE Feed

    Dashboard / CVE / CVE-2020-5891

    CVE-2020-5891

    On BIG-IP 15.1.0-15.1.0.1, 15.0.0-15.0.1.2, and 14.1.0-14.1.2.3, undisclosed HTTP/2 requests can lead to a denial of service when sent to a virtual server configured with the Fallback Host setting and a server-side HTTP/2 profile.

    Published:Apr 30, 2020
    Last Modified:Nov 21, 2024
    EPS:Apr 30, 2020
    EPSS Score:0.00647
    CVSS Score:7.5

    Affected Products

    Vendor
    F5
    Product
    Big-ip Access Policy Manager
    Vendor
    F5
    Product
    Big-ip Advanced Firewall Manager
    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 Fraud Protection Service
    Vendor
    F5
    Product
    Big-ip Link Controller
    Vendor
    F5
    Product
    Big-ip Local Traffic Manager
    Vendor
    F5
    Product
    Big-ip Policy Enforcement Manager

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-39458 (CVSS 8.7) — When a BIG-IP is configured with DNS caching (Such as a DNS profile with caching enabled, SSL Orchestrator, A…
    CVE-2026-20732 (CVSS 2.3) — A vulnerability exists in an undisclosed BIG-IP Configuration utility page that may allow an attacker to spoof…
    CVE-2026-20730 (CVSS 2) — A vulnerability exists in BIG-IP Edge Client and browser VPN clients on Windows that may allow attackers to ga…
    CVE-2025-61990 (CVSS 8.7) — When using a multi-bladed platform with more than one blade, undisclosed traffic can cause the Traffic Managem…
    CVE-2025-61933 (CVSS 5.1) — A reflected cross-site scripting (XSS) vulnerability exists in an undisclosed page of BIG-IP APM that allows a…
    CVE-2025-58071 (CVSS 8.7) — When IPsec is configured on the BIG-IP system, undisclosed traffic can cause the Traffic Management Microkerne…
    CVE-2025-54755 (CVSS 6.9) — A directory traversal vulnerability exists in TMUI that allows a highly privileged authenticated attacker to a…
    CVE-2025-59483 (CVSS 8.5) — A validation vulnerability exists in an undisclosed URL in the Configuration utility.  Note: Software versions…
    CVE-2025-59481 (CVSS 8.5) — A vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell (tmsh) command that may allow an …
    CVE-2025-61960 (CVSS 8.7) — When a per-request policy is configured on a BIG-IP APM portal access virtual server, undisclosed traffic can …

    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