VULNERABILITY INTELLIGENCE
CVE-2018-5538
CVSS score3.7 LOW
EPSS probability0.78%
CISA KEVNot currently listed
Published2018-07-25
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
On F5 BIG-IP DNS 13.1.0-13.1.0.7, 12.1.3-12.1.3.5, DNS Express / DNS Zones accept NOTIFY messages on the management interface from source IP addresses not listed in the 'Allow NOTIFY From' configuration parameter when the db variable "dnsexpress.notifyport" is set to any value other than the default of "0".
Primary references
- f5sirt@f5.com — Mitigation, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Vendor Advisory