CVE-2020-27725

4.3 mediumEPSS 0.8%

Medium (4.3) in f5. EPSS 0.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 56% of CVEs (scores of 2026-10-31)
CWE: CWE-401
Published: 2020-12-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

f5:big-ip_domain_name_system
f5:big-ip_global_traffic_manager
f5:big-ip_link_controller

References

https://support.f5.com/csp/article/K25595031
https://support.f5.com/csp/article/K25595031

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