CVE-2020-27725

MEDIUM

F5 Big-ip Domain Name System < 11.6.5 - Memory Leak

Title source: rule

Description

In version 15.1.0-15.1.0.5, 14.1.0-14.1.3, 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2 of BIG-IP DNS, GTM, and Link Controller, zxfrd leaks memory when listing DNS zones. Zones can be listed via TMSH, iControl or SNMP; only users with access to those services can trigger this vulnerability.

References (1)

[Vendor Advisory] https://support.f5.com/csp/article/K25595031

Scores

CVSS v3 4.3

EPSS 0.0029

EPSS Percentile 52.5%

Attack Vector NETWORK

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

Classification

CWE

CWE-401

Status published

Affected Products (3)

f5/big-ip_domain_name_system < 11.6.5

f5/big-ip_global_traffic_manager < 11.6.5

f5/big-ip_link_controller < 11.6.5

Timeline

Published Dec 24, 2020

Tracked Since Feb 18, 2026