Description
When DNS cache is configured on a BIG-IP or BIG-IP Next CNF virtual server, undisclosed DNS queries can cause an increase in 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 | 17.1.0 – < 17.1.2.2, 16.1.0 – < 16.1.6, 15.1.0 – < 15.1.10.8 | 17.1.2.2 |
| F5 | BIG-IP Next CNF | 1.1.0 | — |
Advisories 3
- 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
- WID-SEC-2025-2308 F5 BIG-IP: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Oct 15, 2025
References
- https://my.f5.com/manage/s/article/K000150637 vendor-advisory