CVE-2020-5921

HIGH

BIG-IP <15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, 13.1.0-13.1.3.4...

Title source: llm
STIX 2.1

Description

in BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.2, Syn flood causes large number of MCPD context messages destined to secondary blades consuming memory leading to MCPD failure. This issue affects only VIPRION hosts with two or more blades installed. Single-blade VIPRION hosts are not affected.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K00103216

Scores

CVSS v3 7.5
EPSS 0.0065
EPSS Percentile 71.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (11)
f5/big-ip_access_policy_manager 12.1.0 - 12.1.5.2
f5/big-ip_advanced_firewall_manager 12.1.0 - 12.1.5.2
f5/big-ip_analytics 12.1.0 - 12.1.5.2
f5/big-ip_application_acceleration_manager 12.1.0 - 12.1.5.2
f5/big-ip_application_security_manager 12.1.0 - 12.1.5.2
f5/big-ip_domain_name_system 12.1.0 - 12.1.5.2
f5/big-ip_fraud_protection_service 12.1.0 - 12.1.5.2
f5/big-ip_global_traffic_manager 12.1.0 - 12.1.5.2
f5/big-ip_link_controller 12.1.0 - 12.1.5.2
f5/big-ip_local_traffic_manager 12.1.0 - 12.1.5.2
... and 1 more
Published Aug 26, 2020
Tracked Since Feb 18, 2026