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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| F5 | BIG-IP Next SPK | 1.7.0 | — |
| F5 | BIG-IP Next CNF | 1.1.0 | — |
| F5 | BIG-IP Next for Kubernetes | 2.0.0 – < 2.1.0 | 2.1.0 |
Advisories 2
- WID-SEC-2025-2310 F5 BIG-IP und F5OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 31, 2026
- NCSC-2025-0319 Kwetsbaarheden verholpen in F5 Networks BIG-IP, F5OS en NGINX App Protect WAF NCSC-NL (Netherlands) · Mar 27, 2026
References
- https://my.f5.com/manage/s/article/K000151596 vendor-advisory