How severe is CVE-2020-36604?

CVE-2020-36604 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-36604 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36604?

CVE-2020-36604 affects Hapijs Hoek. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36604?

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-2020-36604 published?

CVE-2020-36604 was published on 2022-09-23 and last updated on 2026-06-17.

CVE-2020-36604

CVE-2020-36604 is a high-severity vulnerability in Hapijs Hoek with a CVSS 3.x base score of 8.1. 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-1321.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Hapijs Hoek
Published: 2022-09-23
Last modified: 2026-06-17

Description

hoek before 8.5.1 and 9.x before 9.0.3 allows prototype poisoning in the clone function.

Frequently asked questions

What is CVE-2020-36604?: hoek before 8.5.1 and 9.x before 9.0.3 allows prototype poisoning in the clone function.
How severe is CVE-2020-36604?: CVE-2020-36604 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-36604 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36604?: CVE-2020-36604 affects Hapijs Hoek. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36604?: 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-2020-36604 published?: CVE-2020-36604 was published on 2022-09-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hapijs:hoek:*:*:*:*:*:node.js:*:*

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