How severe is CVE-2020-5865?

CVE-2020-5865 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-5865 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5865?

CVE-2020-5865 primarily affects F5 Nginx Controller. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-5865?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-5865 published?

CVE-2020-5865 was published on 2020-04-23 and last updated on 2026-06-17.

CVE-2020-5865

CVE-2020-5865 is a medium-severity vulnerability in F5 Nginx Controller with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 5.8
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: F5 Nginx Controller
Published: 2020-04-23
Last modified: 2026-06-17

Description

In versions prior to 3.3.0, the NGINX Controller is configured to communicate with its Postgres database server over unencrypted channels, making the communicated data vulnerable to interception via man-in-the-middle (MiTM) attacks.

Frequently asked questions

What is CVE-2020-5865?: In versions prior to 3.3.0, the NGINX Controller is configured to communicate with its Postgres database server over unencrypted channels, making the communicated data vulnerable to interception via man-in-the-middle (MiTM) attacks.
How severe is CVE-2020-5865?: CVE-2020-5865 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-5865 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5865?: CVE-2020-5865 primarily affects F5 Nginx Controller. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-5865?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-5865 published?: CVE-2020-5865 was published on 2020-04-23 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:f5:nginx_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_controller:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

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