High · published October 15, 2025
⚡ An undisclosed traffic issue is causing the Traffic Management Microkernel (TMM) to crash unexpectedly! 🚨 Think of the TMM like a busy restaurant kitchen managing orders. If a server suddenly receives an order it can't handle, like a dish with an ingredient they don't have, the entire kitchen might shut down! This vulnerability can lead to significant downtime, as the Traffic Management Microkernel may terminate unexpectedly under certain traffic conditions. This could disrupt service for users, leading to potential data loss and affecting overall application availability. It's a high-stakes situation that needs immediate attention!
Think of the TMM like a busy restaurant kitchen managing orders. If a server suddenly receives an order it can't handle, like a dish with an ingredient they don't have, the entire kitchen might shut down! The vulnerability arises when a DTLS 1.2 virtual server with a specific SSL profile is enabled, leading to crashes due to undisclosed traffic patterns that the TMM can't manage effectively.
This vulnerability can lead to significant downtime, as the Traffic Management Microkernel may terminate unexpectedly under certain traffic conditions. This could disrupt service for users, leading to potential data loss and affecting overall application availability. It's a high-stakes situation that needs immediate attention! To remediate, review your DTLS and SSL configurations to ensure they meet the latest standards, and consider avoiding the use of ANY for SSL sign hashes. Stay updated with patches and check if your software version has reached End of Technical Support (EoTS). You've got this! Follow the steps and you'll have your system running smoothly in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| f5/big-ip_access_policy_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_advanced_firewall_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_advanced_web_application_firewall | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_analytics | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_application_acceleration_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_application_security_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_application_visibility_and_reporting | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_automation_toolchain | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_carrier-grade_nat | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_container_ingress_services | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_ddos_hybrid_defender | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_domain_name_system | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_edge_gateway | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_fraud_protection_service | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_global_traffic_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_link_controller | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_local_traffic_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_policy_enforcement_manager | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_ssl_orchestrator | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_webaccelerator | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_websafe | ≥ 16.1.0, < 16.1.6.1 | 16.1.6.1 |
| f5/big-ip_access_policy_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_access_policy_manager | all versions | — |
| f5/big-ip_advanced_firewall_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_advanced_firewall_manager | all versions | — |
| f5/big-ip_advanced_web_application_firewall | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_advanced_web_application_firewall | all versions | — |
| f5/big-ip_analytics | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_analytics | all versions | — |
| f5/big-ip_application_acceleration_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_application_acceleration_manager | all versions | — |
| f5/big-ip_application_security_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_application_security_manager | all versions | — |
| f5/big-ip_application_visibility_and_reporting | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_application_visibility_and_reporting | all versions | — |
| f5/big-ip_automation_toolchain | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_automation_toolchain | all versions | — |
| f5/big-ip_carrier-grade_nat | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_carrier-grade_nat | all versions | — |
| f5/big-ip_container_ingress_services | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_container_ingress_services | all versions | — |
| f5/big-ip_ddos_hybrid_defender | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_ddos_hybrid_defender | all versions | — |
| f5/big-ip_domain_name_system | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_domain_name_system | all versions | — |
| f5/big-ip_edge_gateway | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_edge_gateway | all versions | — |
| f5/big-ip_fraud_protection_service | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_fraud_protection_service | all versions | — |
| f5/big-ip_global_traffic_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_global_traffic_manager | all versions | — |
| f5/big-ip_link_controller | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_link_controller | all versions | — |
| f5/big-ip_local_traffic_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_local_traffic_manager | all versions | — |
| f5/big-ip_policy_enforcement_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_policy_enforcement_manager | all versions | — |
| f5/big-ip_ssl_orchestrator | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_ssl_orchestrator | all versions | — |
| f5/big-ip_webaccelerator | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_webaccelerator | all versions | — |
| f5/big-ip_websafe | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_websafe | all versions | — |