CVE-2020-5871

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CVSS 3.1

7.5 high

EPSS

1%p62

Published

Apr 30, 2020 (Apr 30, 2020)

Modified

Jun 17, 2026

Description

On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.

Vendors: f5
Products: big-ip access policy manager, big-ip advanced firewall manager, big-ip analytics, big-ip application acceleration manager, big-ip application security manager, big-ip domain name system, big-ip fraud protection service, big-ip global traffic manager, big-ip link controller, big-ip local traffic manager, big-ip policy enforcement manager
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.0%)

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