CVE-2025-22846: BIG-IP SIP Vulnerability

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-05 · updated 2026-06-17
Weakness: CWE-404

Description

When SIP Session and Router ALG profiles are configured on a Message Routing type virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

F5 BIG-IP APM: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
BIG-IP: from 15.1.0 before 15.1.10.6.0.11.6-ENG; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6-ENG, 16.1.5, 17.1.2
F5 Big-Ip Analytics: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 Networks, Inc. BIG-IP (AAM): from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
BIG-IP ASM: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 BIG-IP DNS: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 Big-Ip Fraud Protection Service: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 Big-Ip Global Traffic Manager: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 Big-Ip Link Controller: from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 BIG-IP (LTM): from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2
F5 BIG-IP Next SPK: from 1.7.0 before 1.7.7; 1.8.0, 1.8.1, 1.8.2, 1.9.0 — fixed in 1.7.7
F5 Networks, Inc. BIG-IP (PEM): from 15.1.0 before 15.1.10.6.0.11.6; from 16.1.0 before 16.1.5; from 17.1.0 before 17.1.2 — fixed in 15.1.10.6.0.11.6, 16.1.5, 17.1.2

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 15.1.10.6.0.11.6, 16.1.5, 17.1.2; BIG-IP 15.1.10.6.0.11.6-ENG, 16.1.5, 17.1.2; F5 Big-Ip Analytics 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 Networks, Inc. BIG-IP (AAM) 15.1.10.6.0.11.6, 16.1.5, 17.1.2; BIG-IP ASM 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 BIG-IP DNS 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 Big-Ip Fraud Protection Service 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 Big-Ip Global Traffic Manager 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 Big-Ip Link Controller 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 BIG-IP (LTM) 15.1.10.6.0.11.6, 16.1.5, 17.1.2; F5 BIG-IP Next SPK 1.7.7; F5 Networks, Inc. BIG-IP (PEM) 15.1.10.6.0.11.6, 16.1.5, 17.1.2. Check the vendor advisory for mitigations.

References

https://my.f5.com/manage/s/article/K000139780

Get alerted when CVE-2025-22846 or the next vulnerability affects your stack