K000160901: BIG-IP DTLS vulnerability CVE-2026-42920

Security Advisory Description When a Client SSL profile is configured with Allow Dynamic Record Sizing on a UDP virtual server, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. CVE-2026-42920 Impact Traffic is disrupted while the TMM process restarts. This...

K000161023: BIG-IP SIP profile vulnerability CVE-2026-40423

Security Advisory Description When a SIP profile is configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. CVE-2026-40423 Impact Traffic is disrupted while the TMM process restarts. This vulnerability allows a remote, unauthenticated...

K000160945: BIG-IP DNS Cache vulnerability CVE-2026-39458

Security Advisory Description When a BIG-IP is configured with DNS caching such as a DNS profile with caching enabled, SSL Orchestrator, or Advanced WAF DoS protection, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. CVE-2026-39458 Impact Traffic is disrupted...

CVE-2026-41227: Allocation of Resources Without Limits or Throttling

On an HTTP/2 virtual server with Layer 7 DoS Protection configured, undisclosed traffic can result in an increase in memory consumption causing the Traffic Management Microkernel TMM process to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

PT-2026-40637

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3 F5 BIG-IP versions prior to 17.5.1 Description When Bidirectional Forwarding Detection BFD, a network protocol used to quickly detect faults in the bidirectional path between two forwarding engines, is...

PT-2026-40673

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3.1 F5 BIG-IP versions prior to 17.5.1.4 F5 BIG-IP versions prior to 21.0.0.1 Description When embedded Packet Velocity Acceleration ePVA is configured, undisclosed local ethernet traffic can trigger an infinit...

CVE-2026-39458: Access of Uninitialized Pointer

When a BIG-IP is configured with DNS caching Such as a DNS profile with caching enabled, SSL Orchestrator, Advanced WAF DoS protection, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are n...

PT-2026-40641

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3.2 F5 BIG-IP versions prior to 17.5.1.6 F5 BIG-IP versions prior to 21.0.0.1 Description An uninitialized pointer in the Traffic Management Microkernel TMM can be triggered by undisclosed traffic when a BIG-IP...

CVE-2026-42920: Loop with Unreachable Exit Condition

When a Client SSL profile is configured with Allow Dynamic Record Sizing on a UDP virtual server, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

CVE-2026-42409: NULL Pointer Dereference

When an HTTP/2 profile and an iRule containing the HTTP::redirect or HTTP::respond command are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel TMM process to terminate. Note: Software versions which have reached End of Technical Support EoTS are...

CVE-2026-41956: Stack-based Buffer Overflow

When a classification profile is configured on a UDP virtual server, undisclosed requests can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

CVE-2026-40618: Incorrect Calculation of Buffer Size

When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition VE without Intel QuickAssist Technology QAT or on BIG-IP hardware platforms with the database variable crypto.hwacceleration set to disabled, undisclosed traffic can cause the Traffic Management Microkernel TMM to...

CVE-2026-40423: Allocation of Resources Without Limits or Throttling

When a SIP profile is configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

CVE-2026-34019: Insufficient Resource Pool

When Bidirectional Forwarding Detection BFD is configured in Static and Dynamic routing protocols, undisclosed traffic can cause the Traffic Management Microkernel TMM to stop processing BFD packets and cause the configured routing protocol to fail over. Note: Software versions which have reached...

CVE-2026-42781: Loop with Unreachable Exit Condition

When embedded Packet Velocity Acceleration ePVA acceleration is configured, undisclosed local ethernet traffic can cause an increase in ePVA and Traffic Management Microkernel TMM resource utilization. Note: Software versions which have reached End of Technical Support EoTS are not evaluated...

F5 BIG-IP 资源管理错误漏洞

F5 BIG-IP is an application delivery platform developed by F5 Networks in the United States. It integrates functions such as network traffic management, application security management, and load balancing. There is a resource management vulnerability in F5 BIG-IP. This vulnerability arises when P...

PT-2026-40646

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3.2 F5 BIG-IP versions prior to 17.5.1.6 F5 BIG-IP versions prior to 21.0.0.2 Description When a SIP Session Initiation Protocol profile is configured on a virtual server, undisclosed traffic can cause the...

F5 BIG-IP 安全漏洞

F5 BIG-IP is an application delivery platform developed by F5 Technologies in the United States. It integrates functions such as network traffic management, application security management, and load balancing. There is a security vulnerability in F5 BIG-IP. This vulnerability arises from HTTP/2...

F5 BIG-IP 安全漏洞

F5 BIG-IP is an application delivery platform developed by F5 Technologies in the United States. It integrates functions such as network traffic management, application security management, and load balancing. There is a security vulnerability in F5 BIG-IP. This vulnerability arises from the...

CVE-2026-41218: Use After Free

When BIG-IP PEM iRules are configured on a virtual server iRules using commands starting with CLASSIFICATION::, CLASSIFY::, PEM::, PSC::, and the urlcatquery command, undisclosed traffic can cause the Traffic Management Microkernel TMM to terminate. Note: Software versions which have reached End...