CVE-2020-5945

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-11-05 · updated 2026-06-17
Weakness: CWE-79

Description

In BIG-IP versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.2.7, undisclosed TMUI page contains a stored cross site scripting vulnerability (XSS). The issue allows a minor privilege escalation for resource admin to escalate to full admin.

Affected products

F5 BIG-IP APM: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
BIG-IP: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Big-Ip Analytics: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Networks, Inc. BIG-IP (AAM): from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
BIG-IP ASM: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 BIG-IP DNS: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Big-Ip Fraud Protection Service: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Big-Ip Global Traffic Manager: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Big-Ip Link Controller: from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 BIG-IP (LTM): from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1
F5 Networks, Inc. BIG-IP (PEM): from 14.1.0 before 14.1.2.8; from 15.1.0 before 15.1.1; from 16.0.0 before 16.0.1 — fixed in 14.1.2.8, 15.1.1, 16.0.1

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 14.1.2.8, 15.1.1, 16.0.1; BIG-IP 14.1.2.8, 15.1.1, 16.0.1; F5 Big-Ip Analytics 14.1.2.8, 15.1.1, 16.0.1; F5 Networks, Inc. BIG-IP (AAM) 14.1.2.8, 15.1.1, 16.0.1; BIG-IP ASM 14.1.2.8, 15.1.1, 16.0.1; F5 BIG-IP DNS 14.1.2.8, 15.1.1, 16.0.1; F5 Big-Ip Fraud Protection Service 14.1.2.8, 15.1.1, 16.0.1; F5 Big-Ip Global Traffic Manager 14.1.2.8, 15.1.1, 16.0.1; F5 Big-Ip Link Controller 14.1.2.8, 15.1.1, 16.0.1; F5 BIG-IP (LTM) 14.1.2.8, 15.1.1, 16.0.1; F5 Networks, Inc. BIG-IP (PEM) 14.1.2.8, 15.1.1, 16.0.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2020-5945 or the next vulnerability affects your stack