CVE-2021-22999

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
f5CNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 69%
VendorProductVersion
f5big-ip_access_policy_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_access_policy_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_advanced_firewall_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_advanced_firewall_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_advanced_web_application_firewall
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_advanced_web_application_firewall
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_analytics
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_analytics
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_application_acceleration_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_application_acceleration_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_application_security_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_application_security_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_ddos_hybrid_defender
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_ddos_hybrid_defender
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_domain_name_system
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_domain_name_system
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_fraud_protection_service
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_fraud_protection_service
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_global_traffic_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_global_traffic_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_link_controller
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_link_controller
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_local_traffic_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_local_traffic_manager
15.0.0 ≤
𝑥
< 15.1.0
f5big-ip_policy_enforcement_manager
14.1.0 ≤
𝑥
< 14.1.4
f5big-ip_policy_enforcement_manager
15.0.0 ≤
𝑥
< 15.1.0
f5ssl_orchestrator
14.1.0 ≤
𝑥
< 14.1.4
f5ssl_orchestrator
15.0.0 ≤
𝑥
< 15.1.0
𝑥
= Vulnerable software versions