Security readout for executives and security teams
Plain-English summary
CVE-2018-13146 describes an integer overflow in mintToken, buy, and sell functions of a LEF Ethereum token smart contract implementation. Arithmetic errors in token issuance or trading logic can undermine token balances or economics. The sources do not provide CVSS, affected versions, a patch, or confirmed exploitation.
Executive priority
Prioritize only if your organization holds, integrates, lists, or operates the LEF token contract or a fork. For most organizations, urgency is low until exposure is confirmed.
Technical view
The CVE record states that LEF token smart contract functions mintToken, buy, and sell contain integer overflow. The bundle identifies no CPEs, vendor/product metadata, CWE, CVSS vector, or remediation. The only technical reference is a GitHub page for the LEF token implementation.
Likely exposure
Exposure appears limited to deployments or copied implementations of the referenced LEF Ethereum token contract. The source bundle does not identify packaged products, versions, exchanges, wallets, or infrastructure software as affected.
Exploitation context
The source bundle does not show CISA KEV listing, public exploitation, exploit availability, or attack activity. Treat exploitation status as unconfirmed, not absent.
Researcher notes
Evidence is sparse. The CVE text names vulnerable functions but provides no CVSS, CWE, affected versioning, patch status, exploit evidence, or deployment identifiers. Further assessment needs the referenced contract code and any deployed addresses under review.
Mitigation direction
- Inventory any LEF token contract deployments or forks in your environment.
- Check project or vendor guidance for confirmed remediation or migration advice.
- Avoid relying on affected mint, buy, or sell logic until exposure is verified.
- Document ownership and governance for any exposed contract before making changes.
Validation and detection
- Compare deployed contract source or verified bytecode against the referenced LEF implementation.
- Review mintToken, buy, and sell arithmetic for overflow-safe handling.
- Check token transaction history for abnormal minting, buying, selling, or balance changes.
- Confirm whether any business process depends on this contract.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-13146 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/safecomet/EtherTokens/blob/master/LEF%20%28LEF%29/LEF%20%28LEF%29.mdCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.