Vulnerability Details CVE-2021-23018
Intra-cluster communication does not use TLS. The services within the NGINX Controller 3.x before 3.4.0 namespace are using cleartext protocols inside the cluster.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 44.6%
CVSS Severity
CVSS v3 Score 7.4
CVSS v2 Score 5.8
Products affected by CVE-2021-23018
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cpe:2.3:a:f5:nginx_controller:3.0.0
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cpe:2.3:a:f5:nginx_controller:3.1.0
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cpe:2.3:a:f5:nginx_controller:3.2.0
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cpe:2.3:a:f5:nginx_controller:3.3.0
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cpe:2.3:a:f5:nginx_controller:3.4.0