The mintToken function of a smart contract implementation for Crowdnext (CNX), 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.
Conclusion & alert: CVE-2018-13744 is rated High Exploit Risk (60.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.24%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 0.28% | 0.24% | -0.04% |
| 2 | 2025-03-29 | 0.15% | 0.28% | +0.13% |
| 3 | 2024-12-17 | — | 0.15% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| crowdnext_project | crowdnext | — | cpe:2.3:a:crowdnext_project:crowdnext:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md | Exploit Third Party Advisory |
| https://github.com/BlockChainsSecurity/EtherTokens/tree/master/Crowdnext | Third Party Advisory |