CVE-2018-13548
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe mintToken function of a smart contract implementation for Mimicoin, 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe mintToken function in the Mimicoin Ethereum smart contract contains an integer overflow vulnerability that allows the contract owner to manipulate token balances of arbitrary users to any value, bypassing proper validation through arithmetic overflow.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the deployed Mimicoin contractQuery the blockchain for contracts named Mimicoin or at known Mimicoin contract addresses; verify the contract name/version matches the Mimicoin projectAffected if The deployed contract is the Mimicoin token contract (any address)
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Locate the mintToken functionView the contract source code on a block explorer (e.g., Etherscan) or decompile the bytecode to find a function named mintToken or similar minting functionAffected if A mintToken or equivalent minting function exists in the contract
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Check for SafeMath library usageSearch the contract source code for 'using SafeMath' or import statements for SafeMath library, or check if arithmetic operations use SafeMath methods (.add, .sub, .mul, .div)Affected if SafeMath library is NOT imported or NOT used for arithmetic operations in the mintToken function
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Verify overflow protection in mintToken functionExamine the mintToken function implementation specifically: check if balance += tokenAmount or similar arithmetic uses SafeMath methods; look for any addition without overflow checksAffected if The mintToken function performs balance arithmetic without SafeMath protection (e.g., uses plain + operator instead of .add())
If the Mimicoin contract is deployed and its mintToken function lacks SafeMath overflow protection, the environment is affected by CVE-2018-13548.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataDeploy an updated contract version implementing SafeMath library or equivalent overflow protection, and migrate affected balances; consider a contract audit to verify the fix and assess similar risks in other functions.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-13548 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-13548 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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