CVE-2025-54805 TMM Vulnerability
Re-instantiating virtual servers with iRules via declarative API causes TMM memory leaks, potentially leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54805?
CVE-2025-54805 is a medium-severity denial of service vulnerability in F5 BIG-IP Next CNF, published on 15 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
When an iRule is configured on a virtual server via the declarative API, upon re-instantiation, the cleanup process can cause an increase in the Traffic Management Microkernel (TMM) memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Weakness: CWE-401
Which versions are affected by CVE-2025-54805?
It affects 3 products.
Products include F5 Big-Ip Next Cloud-Native Network Functions, F5 Big-Ip Next for Kubernetes, F5 Big-Ip Next Service Proxy for Kubernetes.
How do I fix CVE-2025-54805?
No fix has been published for CVE-2025-54805 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-2025-54805 being exploited?
There is no known exploitation of CVE-2025-54805 in the wild and no public exploit code.
Other vulnerabilities in F5 BIG-IP Next CNF
Sources
Also known as GHSA-vgh4-q2cm-w7mg.