How severe is CVE-2020-7639?

CVE-2020-7639 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-7639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7639?

CVE-2020-7639 affects Dot Project Dot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7639?

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

When was CVE-2020-7639 published?

CVE-2020-7639 was published on 2020-04-06 and last updated on 2026-06-17.

CVE-2020-7639

CVE-2020-7639 is a medium-severity vulnerability in Dot Project Dot with a CVSS 3.x base score of 5.3. 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: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Dot Project Dot
Published: 2020-04-06
Last modified: 2026-06-17

Description

eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The function 'set' could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.

Frequently asked questions

What is CVE-2020-7639?: eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The function 'set' could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
How severe is CVE-2020-7639?: CVE-2020-7639 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-7639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7639?: CVE-2020-7639 affects Dot Project Dot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7639?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-7639 published?: CVE-2020-7639 was published on 2020-04-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dot_project:dot:*:*:*:*:*:node.js:*:*

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