CVE-2018-5538

low-risk
Published 2018-07-25

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".

Do I need to act?

-
0.38% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.7/10 Low
NETWORK / HIGH complexity

Affected Products (4)

Affected Vendors

F5

References (2)

Mitigation https://support.f5.com/csp/article/K45435121
Mitigation https://support.f5.com/csp/article/K45435121
24
/ 100
low-risk
Severity 13/34 · Low
Exploitability 1/34 · Minimal
Exposure 10/34 · Low