How severe is CVE-2020-5895?

CVE-2020-5895 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5895 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5895?

CVE-2020-5895 affects F5 Nginx Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5895?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-5895 published?

CVE-2020-5895 was published on 2020-05-07 and last updated on 2026-06-17.

CVE-2020-5895

CVE-2020-5895 is a high-severity vulnerability in F5 Nginx Controller with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: F5 Nginx Controller
Published: 2020-05-07
Last modified: 2026-06-17

Description

On NGINX Controller versions 3.1.0-3.3.0, AVRD uses world-readable and world-writable permissions on its socket, which allows processes or users on the local system to write arbitrary data into the socket. A local system attacker can make AVRD segmentation fault (SIGSEGV) by writing malformed messages to the socket.

Frequently asked questions

What is CVE-2020-5895?: On NGINX Controller versions 3.1.0-3.3.0, AVRD uses world-readable and world-writable permissions on its socket, which allows processes or users on the local system to write arbitrary data into the socket. A local system attacker can make AVRD segmentation fault (SIGSEGV) by writing malformed messages to the socket.
How severe is CVE-2020-5895?: CVE-2020-5895 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5895 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5895?: CVE-2020-5895 affects F5 Nginx Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5895?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-5895 published?: CVE-2020-5895 was published on 2020-05-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:f5:nginx_controller:*:*:*:*:*:*:*:*

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