How severe is CVE-2021-34270?

CVE-2021-34270 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-2021-34270 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34270?

CVE-2021-34270 affects Doft Doftcoin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34270?

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-2021-34270 published?

CVE-2021-34270 was published on 2021-08-03 and last updated on 2026-06-17.

CVE-2021-34270

CVE-2021-34270 is a high-severity vulnerability in Doft Doftcoin 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% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Doft Doftcoin
Published: 2021-08-03
Last modified: 2026-06-17

Description

An integer overflow in the mintToken function of a smart contract implementation for Doftcoin Token, an Ethereum ERC20 token, allows the owner to cause unexpected financial losses.

Frequently asked questions

What is CVE-2021-34270?: An integer overflow in the mintToken function of a smart contract implementation for Doftcoin Token, an Ethereum ERC20 token, allows the owner to cause unexpected financial losses.
How severe is CVE-2021-34270?: CVE-2021-34270 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-2021-34270 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34270?: CVE-2021-34270 affects Doft Doftcoin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34270?: 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-2021-34270 published?: CVE-2021-34270 was published on 2021-08-03 and last updated on 2026-06-17.

References

https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/Doftcoin.md

Affected products (1)

cpe:2.3:a:doft:doftcoin:-:*:*:*:*:*:*:*

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