K000160932: Quarterly Security Notification (May 2026)

Security Advisory Description On May 13, 2026, F5 announced the following security issues. This document is intended to serve as an overview of these vulnerabilities to help determine the impact to your F5 devices. You can find the details of each issue in the associated articles. You can watch t...

K000161107: BIG-IP tmsh vulnerability CVE-2026-41217

Security Advisory Description A vulnerability exists in an undisclosed BIG-IP TMOS Shell tmsh command that may allow an authenticated attacker with resource administrator or administrator role to execute arbitrary system commands with higher privileges. In Appliance mode deployments, a successful...

K000160862: BIG-IP FastL4 virtual server vulnerability CVE-2026-42781

Security Advisory Description 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. CVE-2026-42781 Impact System performance can degrade until the TM...

K000158978: BIG-IP SSL/TLS vulnerability CVE-2026-40629

Security Advisory Description When SSL profiles are configured on a virtual server, undisclosed traffic can cause the virtual server to stop processing new client connections. CVE-2026-40629 Impact Traffic is disrupted while the TMM process restarts. This vulnerability allows a remote,...

K000157895: BIG-IP qkview vulnerability CVE-2026-41219

Security Advisory Description An improper sanitization vulnerability exists in the BIG-IP qkview utility that allows a low-privileged attacker to read sensitive information from a QKView file. CVE-2026-41219 Impact An attacker may exploit this vulnerability to read sensitive information from a...

K000149743: BIG-IP SSL Orchestrator vulnerability CVE-2026-42780

Security Advisory Description A directory traversal vulnerability exists in BIG-IP SSL Orchestrator that allows an authenticated attacker with high privilege to overwrite, delete or corrupt arbitrary local files. CVE-2026-42780 Impact An authenticated attacker with high privilege may exploit this...

CVE-2026-35506

ELECOM wireless LAN access point devices contain an OS command injection vulnerability in processing of pingipaddr parameter. If processing a crafted request sent by a logged-in user, an arbitrary OS command may be executed...

K000160857: Appliance mode iControl REST vulnerability CVE-2026-34176

Security Advisory Description When running in Appliance mode, an authenticated remote command injection vulnerability exists in an undisclosed iControl REST endpoint. A successful exploit can allow the attacker to cross a security boundary. CVE-2026-34176 Impact In Appliance mode, this...

K000160863: iControl REST and tmsh vulnerability CVE-2026-39459

Security Advisory Description A vulnerability exists in iControl REST and the TMOS Shell tmsh where a highly privileged, authenticated attacker with at least the Manager role can create configuration objects that allow running arbitrary commands. CVE-2026-39459 Impact This vulnerability may allow...

K000161018: iControl REST and tmsh vulnerability CVE-2026-42937

Security Advisory Description Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell tmsh arp and ndp commands, and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view adjacent network information. CVE-2026-42937 Impact An...

K000161022: iControl REST and tmsh vulnerability CVE-2026-41959

Security Advisory Description Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell tmsh network diagnostics commands and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view the network status of destination systems...

K000161068: NGINX ngx_quic_module vulnerability CVE-2026-40460

Security Advisory Description When NGINX Plus or NGINX Open Source is configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting. CVE-2026-40460 Impact This vulnerability allows a remote,...

K000160972: BIG-IP and BIG-IQ privilege escalation vulnerability CVE-2026-32643

Security Advisory Description A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects that allow running arbitrary commands. CVE-2026-32643 Impact This vulnerability may allow...

K000160971: BIG-IP and BIG-IQ privilege escalation vulnerability CVE-2026-42406

Security Advisory Description A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects that allow running arbitrary commands. CVE-2026-42406 Impact This vulnerability may allow...

K000160788: iControl REST and tmsh vulnerability CVE-2026-40061

Security Advisory Description When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed iControl REST and BIG-IP TMOS Shell tmsh command that may allow an authenticated attacker with the Resource Administrator or Administrator role to execute arbitrary system commands with higher...

K000150508: BIG-IP BFD vulnerability CVE-2026-34019

Security Advisory Description 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. CVE-2026-340...

K000156604: BIG-IP httpd access control vulnerability CVE-2026-40435

Security Advisory Description When configured, IP-based access restrictions for httpd do not cover all endpoints, which may allow connections from blocked addresses. CVE-2026-40435 Impact This vulnerability allows an attacker to connect to the BIG-IP control plane HTTP services; however, the...

K35544022: BIG-IP Configuration utility CSRF vulnerability CVE-2026-40703

Security Advisory Description A cross-site request forgery CSRF vulnerability exists in the dashboard of the BIG-IP Configuration utility. CVE-2026-40703 Impact A remote, unauthenticated attacker may exploit this vulnerability by causing an authenticated user to send a crafted request to the BIG-...

K000158971: BIG-IP Appliance mode vulnerability CVE-2026-42919

Security Advisory Description A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary. CVE-2026-42919 Impact The vulnerability allows the...

K000157981: BIG-IP DNS tmsh vulnerability CVE-2026-42408

Security Advisory Description When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell tmsh command that may allow a highly privileged authenticated attacker to view sensitive information. CVE-2026-42408 Impact An authenticated attacker with Resource Administrator role...