83GRADE B
CoinEx (Ethereum)
0x081f67afa0ccf8c7b17540767bbe95df2ba8d97f · Ethereum
Smart contract · scanned 6 h ago · Explorer
Findings
- medium Arithmetic without overflow checksThe code targets Solidity below 0.8 and does arithmetic without SafeMath, so overflows wrap silently.
- medium Outdated Solidity compilerCompiled with Solidity 0.4.21, which predates built-in overflow checks and later compiler bug fixes.
- low ETH sent with transfer/sendETH is sent with transfer() or send(), whose 2300-gas stipend can fail for smart-contract wallets.
Evidence, exact locations and fixes are in the deep report. How scoring works.
Scan notes
GoPlus token data unavailable — token checks skipped
Facts
- Contract
- CoinEx
- Compiler
- solc 0.4.21
- Verified
- Sourcify partial
- Proxy
- No
- Owner
- 0xf54635836862aad6e255e9b4fe49275fa5047e5d
- Code size
- 5945
Badge
[](https://dappvet.com/c/ethereum/0x081f67afa0ccf8c7b17540767bbe95df2ba8d97f)
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