CVE-2020-27713

Name: CVE-2020-27713
Creator: NVD / NIST
Published: 2020-12-11T19:15:12.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.26%

Last modified Jun 17, 2026

CVE-2020-27713 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In certain configurations on version 13.1.3.4, when a BIG-IP AFM HTTP security profile is applied to a virtual server and the BIG-IP system receives a request with specific characteristics, the connection is reset and the Traffic Management Microkernel (TMM) leaks memory.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

In certain configurations on version 13.1.3.4, when a BIG-IP AFM HTTP security profile is applied to a virtual server and the BIG-IP system receives a request with specific characteristics, the connection is reset and the Traffic Management Microkernel (TMM) leaks memory.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.26%

65.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-401

Affected Software

Vendor	Product	Versions
F5	Big-Ip Advanced Firewall Manager	13.1.3.4

References

https://support.f5.com/csp/article/K37960100Vendor Advisory
https://support.f5.com/csp/article/K37960100Vendor Advisory

Timeline

Published: Dec 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27713?

How severe is CVE-2020-27713?

CVE-2020-27713 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27713?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27713?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST