CVE-2018-13189
The mint function of a smart contract implementation for Unolabo (UNLB), 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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The mint function of a smart contract implementation for Unolabo (UNLB), 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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.09% probability · 65th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- unolabo project/unolabo
- Source
- cve@mitre.org
EPSS 1.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.mdExploit, Third Party Advisory
- https://github.com/BlockChainsSecurity/EtherTokens/tree/master/UNLBThird Party Advisory
- https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.mdExploit, Third Party Advisory
- https://github.com/BlockChainsSecurity/EtherTokens/tree/master/UNLBThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.