CVE-2021-22977

HIGH

F5 BIG-IP 14.1.0-14.1.3 - Denial of Service via Malicious HTTP Client and Server Cooperation

Title source: llm
STIX 2.1

Description

On BIG-IP version 16.0.0-16.0.1 and 14.1.2.4-14.1.3, cooperation between malicious HTTP client code and a malicious server may cause TMM to restart and generate a core file. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.f5.com/csp/article/K14693346

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 (14)
f5/big-ip_access_policy_manager 14.1.0 - 14.1.3.1
f5/big-ip_advanced_firewall_manager 14.1.0 - 14.1.3.1
f5/big-ip_advanced_web_application_firewall 14.1.0 - 14.1.3.1
f5/big-ip_analytics 14.1.0 - 14.1.3.1
f5/big-ip_application_acceleration_manager 14.1.0 - 14.1.3.1
f5/big-ip_application_security_manager 14.1.0 - 14.1.3.1
f5/big-ip_ddos_hybrid_defender 14.1.0 - 14.1.3.1
f5/big-ip_domain_name_system 14.1.0 - 14.1.3.1
f5/big-ip_fraud_protection_service 14.1.0 - 14.1.3.1
f5/big-ip_global_traffic_manager 14.1.0 - 14.1.3.1
... and 4 more
Published Feb 12, 2021
Tracked Since Feb 18, 2026