CVE-2026-55723
Multiple vulnerabilities have been discovered in F5 products. Some of them allow an attacker to cause remote arbitrary code execution, a remote denial of service, and a breach of data confidentiality.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to cause remote arbitrary code execution, a remote denial of service, and a breach of data confidentiality.
- Who is affected
- Users of F5 products are affected.
- Urgency
- Remediation is high urgency due to the severity of the vulnerabilities.
- Action
- Update F5 products to the latest versions as soon as possible.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
Advisory coverage (2)
- unknownMultiple vulnerabilities in F5 products (July 16, 2026)cert-fr-avis · 2026-07-16
- highCVE-2026-55723: When NGINX Ingress Controller is configured with Custom Resource Definitions (CRDs) or Ingress…nvd · 2026-07-15
External references
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[](https://www.csirts.com/cve/CVE-2026-55723)