CVE-2025-58474 BIG-IP Advanced WAF and ASM and NGINX App Protect DNS lookup vulnerability

Medium 6.9 Published 15 Oct 2025 Updated 26 Feb 2026

Attackers can disrupt new client requests on F5 BIG-IP WAF or NGINX App Protect when specific protection features are enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-58474?

CVE-2025-58474 is a medium-severity denial of service vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 15 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When BIG-IP Advanced WAF is configured on a virtual server with Server-Side Request Forgery (SSRF) protection or when an NGINX server is configured with App Protect Bot Defense, undisclosed requests can disrupt new client requests. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Weakness: CWE-770

Which versions are affected by CVE-2025-58474?

It affects 2 products.

Products include F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.

How do I fix CVE-2025-58474?

No fix has been published for CVE-2025-58474 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-58474 being exploited?

There is no known exploitation of CVE-2025-58474 in the wild and no public exploit code.

All F5 Big-Ip Advanced Web Application Firewall vulnerabilities

Sources

Also known as GHSA-9v7m-8h7x-fp6q.