How severe is CVE-2018-18665?

CVE-2018-18665 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 high, and availability none.

Is CVE-2018-18665 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18665?

CVE-2018-18665 affects Nexxuscoin Nexxustoken. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18665?

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-2018-18665 published?

CVE-2018-18665 was published on 2018-12-28 and last updated on 2026-06-17.

CVE-2018-18665

CVE-2018-18665 is a high-severity vulnerability in Nexxuscoin Nexxustoken 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Nexxuscoin Nexxustoken
Published: 2018-12-28
Last modified: 2026-06-17

Description

The mintToken function of Nexxus (NXX) aka NexxusToken, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.

Frequently asked questions

What is CVE-2018-18665?: The mintToken function of Nexxus (NXX) aka NexxusToken, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
How severe is CVE-2018-18665?: CVE-2018-18665 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 high, and availability none.
Is CVE-2018-18665 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18665?: CVE-2018-18665 affects Nexxuscoin Nexxustoken. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18665?: 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-2018-18665 published?: CVE-2018-18665 was published on 2018-12-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nexxuscoin:nexxustoken:-:*:*:*:*:*:*:*

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