CVE-2025-59478 BIG-IP AFM DoS protection profile vulnerability
Attackers can cause a denial of service by sending undisclosed requests to a BIG-IP virtual server with an AFM DoS protection profile configured.
- 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-2025-59478?
CVE-2025-59478 is a high-severity denial of service vulnerability in F5 Big-Ip Advanced Firewall Manager, 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 a BIG-IP AFM denial-of-service (DoS) protection profile is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-824
Which versions are affected by CVE-2025-59478?
It affects 1 product.
Products include F5 Big-Ip Advanced Firewall Manager.
How do I fix CVE-2025-59478?
No fix has been published for CVE-2025-59478 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-2025-59478 being exploited?
There is no known exploitation of CVE-2025-59478 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Advanced Firewall Manager
Sources
Also known as GHSA-q2gw-g324-7822.