CVE-2021-22999 : faille élevée f5 big-ip access policy manager (CVSS 7.5)

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.

Sévérité

Élevée (CVSS 7.5)

Vecteur CVSS

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

Exploitation active

Non signalée par la CISA

Publication

31 mars 2021

Dernière mise à jour

17 juin 2026

• f5 big-ip access policy manager
• f5 big-ip advanced firewall manager
• f5 big-ip advanced web application firewall
• f5 big-ip analytics
• f5 big-ip application acceleration manager
• f5 big-ip application security manager
• f5 big-ip ddos hybrid defender
• f5 big-ip domain name system
• f5 big-ip fraud protection service
• f5 big-ip global traffic manager
• f5 big-ip link controller
• f5 big-ip local traffic manager
• f5 big-ip policy enforcement manager
• f5 ssl orchestrator

• Fiche CVE-2021-22999 sur le NVD (NIST)
• support.f5.com/csp/article/K02333782