CVE-2021-23018 describes a critical vulnerability in NGINX Controller 3.x before 3.4.0 where intra-cluster communication occurs over unencrypted cleartext protocols, exposing sensitive data. With a CVSS score of 7.4 (High), this vulnerability allows unauthenticated attackers to achieve high confidentiality and integrity impacts with high attack complexity, as services within the cluster are not using TLS. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.0.0, <= 3.4.0CPE matchmatch criteria | cpe:2.3:a:f5:nginx_controller:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.