CVE-2020-5936: F5 BIG-IP Local Traffic Manager

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

On BIG-IP LTM 15.1.0-15.1.0.5, 14.1.0-14.1.2.7, 13.1.0-13.1.3.4, and 12.1.0-12.1.5.1, the Traffic Management Microkernel (TMM) process may consume excessive resources when processing SSL traffic and client authentication are enabled on the client SSL profile.

Affected products

• F5 BIG-IP Local Traffic Manager: from 12.1.0, before 12.1.5.2 (fixed in 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 15.0.0, before 15.1.1 (fixed in 15.1.1)

Published 2020-10-29. Last modified 2026-06-17.