What’s Vulnerable › Vulnerabilities

CVE-2020-5864

• Severity: high (CVSS 7.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-23 · updated 2026-06-17
• Weakness: CWE-295

Description

In versions of NGINX Controller prior to 3.2.0, communication between NGINX Controller and NGINX Plus instances skip TLS verification by default.

Affected products

• NGINX Controller: from 2.0.0 through 2.9.0; from 3.0.0 before 3.3.0; 1.0.1 — fixed in 3.3.0

How to fix

Upgrade to a fixed version: NGINX Controller 3.3.0. Check the vendor advisory for mitigations.

References

• https://security.netapp.com/advisory/ntap-20200430-0005/
• https://support.f5.com/csp/article/K27205552
• https://security.netapp.com/advisory/ntap-20200430-0005/
• https://support.f5.com/csp/article/K27205552

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