CVE-2020-8237

CVE-2020-8237 is a high-severity vulnerability in Json-bigint Project Json-bigint with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Description

Prototype pollution in json-bigint npm package < 1.0.0 may lead to a denial-of-service (DoS) attack.

Frequently asked questions

What is CVE-2020-8237?
Prototype pollution in json-bigint npm package < 1.0.0 may lead to a denial-of-service (DoS) attack.
How severe is CVE-2020-8237?
CVE-2020-8237 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-8237 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8237?
CVE-2020-8237 affects Json-bigint Project Json-bigint. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8237?
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-2020-8237 published?
CVE-2020-8237 was published on 2020-09-18 and last updated on 2026-06-17.

References

Affected products (1)

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