CVE-2021-22999

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published: Mar 31, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-23004.9Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.0.23 and prio CVE-2021-230007.5On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host CVE-2021-230014.3On versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x CVE-2021-230024.5When using BIG-IP APM 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, or all 12.1.x and 11.6.x CVE-2021-230037.5On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and CVE-2021-230047.5On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2, 14.1.x before 14.1.3.1, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and CVE-2021-230059.1On all 7.x and 6.x versions (fixed in 8.0.0), when using a Quorum device for BIG-IQ high availability (HA) for automatic failover, BIG-IQ do CVE-2021-230066.1On all 7.x and 6.x versions (fixed in 8.0.0), undisclosed BIG-IQ pages have a reflected cross-site scripting vulnerability. Note: Software v CVE-2021-230075.3On BIG-IP versions 14.1.4 and 16.0.1.1, when the Traffic Management Microkernel (TMM) process handles certain undisclosed traffic, it may st CVE-2021-230089.8On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and all versions of 16.0.x and 11.6.x., B CVE-2021-230097.5On BIG-IP version 16.0.x before 16.0.1.1 and 15.1.x before 15.1.3, malformed HTTP/2 requests may cause an infinite loop which causes a Denia CVE-2021-23012.7Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Information Schema). Supported versions that are affected are