CVE-2018-13503 json
The mintToken function of a smart contract implementation for South Park Token Token (SPTKN), an Ethereum token, has an integer overflow th…
published 2018-07-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-5441
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 62%
- public exploits
- 0
- none known
Summary
The mintToken function of a smart contract implementation for South Park Token Token (SPTKN), 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.
Exploit prediction
0.99% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
-
github.com
/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md
third-party-advisory
-
github.com
/BlockChainsSecurity/EtherTokens/tree/master/TokenToken
third-party-advisory
Sources
- CVE List CVE-2018-13503
- NVD CVE-2018-13503
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