Vulnerability in F5 Big-Ip Domain Name System

CVE-2020-27721

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response.

EPSS: 0.010 (59.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

References

Frequently asked questions

What is CVE-2020-27721?
CVE-2020-27721 is a high-severity vulnerability in F5 Big-Ip Domain Name System. CVSS score: 7.5/10. Published 2020-12-24.
How severe is CVE-2020-27721?
High severity. CVSS v3 base score is 7.5 out of 10.