F5 patches multiple BIG-IP, NGINX flaws
ANSSI warns of multiple vulnerabilities in F5 BIG-IP, BIG-IP Next, F5 WAF and NGINX products enabling remote code execution, denial of service and data disclosure.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 9 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- A public exploit is recorded for CVE-2026-46333 (weaponized); no exploitation in the wild is recorded.
France's CERT-FR issued an advisory covering multiple vulnerabilities affecting a range of F5 products, including BIG-IP Next CNF, BIG-IP Next SPK, BIG-IP, F5 WAF, and multiple NGINX variants (Ingress Controller, Open Source, and Plus). The flaws collectively allow remote code execution, remote denial of service, data confidentiality breaches, data integrity compromise, and security policy bypass.
Nine CVEs are referenced in the advisory (CVE-2026-42533, CVE-2026-46333, CVE-2026-52865, CVE-2026-55723, CVE-2026-56434, CVE-2026-59762, CVE-2026-60005, CVE-2026-60062, CVE-2026-60065), tied to eight separate F5 security bulletins published on 15 July 2026. No exploitation in the wild is mentioned in the advisory; it is a standard vendor patch notification. Organizations running affected BIG-IP and NGINX deployments should apply F5's published fixes referenced in the linked bulletins.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0894
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