F5 Patches Critical Vulnerabilities in BIG-IP, NGINX, and Related Products

F5 published its February 2026 security notification detailing multiple vulnerabilities and security exposures impacting BIG-IP, NGINX (including NGINX Plus, Open Source, and ingress controller), and BIG-IP Container Ingress Services; the most impactful issues enable network-adjacent DoS and configuration-based risks with CVSS v4.0 scores up to 8.2. The advisory lists affected versions, fixes or fixed versions, and urges patching and scanning of internet-facing and NGINX-heavy deployments; no active exploitation is reported.