CVE-2022-41624: BIG-IP iRules vulnerability CVE-2022-41624

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-19 · updated 2026-06-17
Weakness: CWE-401

Description

In BIG-IP versions 17.0.x before 17.0.0.1, 16.1.x before 16.1.3.2, 15.1.x before 15.1.7, 14.1.x before 14.1.5.2, and 13.1.x before 13.1.5.1, when a sideband iRule is configured on a virtual server, undisclosed traffic can cause an increase in memory resource utilization.

Affected products

F5 BIG-IP APM: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
BIG-IP: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Big-Ip Analytics: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Networks, Inc. BIG-IP (AAM): from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
BIG-IP ASM: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 through 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2
F5 BIG-IP DNS: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Big-Ip Fraud Protection Service: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Big-Ip Global Traffic Manager: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Big-Ip Link Controller: from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 BIG-IP (LTM): from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1
F5 Networks, Inc. BIG-IP (PEM): from 13.1.0 before 13.1.5.1; from 14.1.0 before 14.1.5.2; from 15.1.0 before 15.1.7; from 16.1.0 before 16.1.3.2; from 17.0.0 before 17.0.0.1 — fixed in 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2, 17.0.0.1

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; BIG-IP 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Big-Ip Analytics 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Networks, Inc. BIG-IP (AAM) 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; BIG-IP ASM 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 BIG-IP DNS 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Big-Ip Fraud Protection Service 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Big-Ip Global Traffic Manager 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Big-Ip Link Controller 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 BIG-IP (LTM) 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2; F5 Networks, Inc. BIG-IP (PEM) 13.1.5.1, 14.1.5.2, 15.1.7, 16.1.3.2. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-41624 or the next vulnerability affects your stack