CVE-2020-5942: F5 BIG-IP Policy Enforcement Manager

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

In BIG-IP PEM versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.2.7, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when processing Capabilities-Exchange-Answer (CEA) packets with certain attributes from the Policy and Charging Rules Function (PCRF) server, the Traffic Management Microkernel (TMM) may generate a core file and restart.

Affected products

• F5 BIG-IP Policy Enforcement Manager: from 11.6.1, up to and including 11.6.5.2; from 12.1.0, up to and including 12.1.5.2; from 13.1.0, up to and including 13.1.3.4; from 14.1.0, before 14.1.2.8 (fixed in 14.1.2.8); from 15.1.0, before 15.1.1 (fixed in 15.1.1); from 16.0.0, before 16.0.1 (fixed in 16.0.1)

Published 2020-11-05. Last modified 2026-06-17.