CVE-2020-5914: F5 BIG-IP Application Security Manager

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

In BIG-IP ASM versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, undisclosed server cookie scenario may cause BD to restart under some circumstances.

Affected products

• F5 BIG-IP Application Security Manager: from 11.5.2, before 11.6.5.2 (fixed in 11.6.5.2); from 12.1.0, before 12.1.5.2 (fixed in 12.1.5.2); from 13.1.0, before 13.1.3.4 (fixed in 13.1.3.4); from 14.1.0, before 14.1.2.5 (fixed in 14.1.2.5); from 15.0.0, before 15.0.1.4 (fixed in 15.0.1.4); from 15.1.0, before 15.1.0.5 (fixed in 15.1.0.5)

Published 2020-08-26. Last modified 2026-06-17.