What’s Vulnerable › Vulnerabilities
CVE-2020-5936
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-29 · updated 2026-06-17
- Weakness: CWE-400
Description
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 (LTM): from 12.1.0 before 12.1.5.2; from 13.1.0 through 13.1.3.4; from 14.1.0 before 14.1.2.8; from 15.0.0 before 15.1.1 — fixed in 12.1.5.2, 14.1.2.8, 15.1.1
How to fix
Upgrade to a fixed version: F5 BIG-IP (LTM) 12.1.5.2, 14.1.2.8, 15.1.1. Check the vendor advisory for mitigations.
References
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