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5 Common Smart Contract Vulnerabilities and Bugs You Should Know About

ID: cc02ff06-1de8-509d-a43c-9c4782e61b8b

STIX ID: report--cc02ff06-1de8-509d-a43c-9c4782e61b8b

Feed Name: CertiK Blog

Date Published: 2019-10-25

Date Updated: 2026-06-11

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This article reviews common smart contract vulnerabilities — including timestamp and block-number dependence, transaction-ordering/front-running, integer overflow/underflow, access/privilege control weaknesses, potential blockchain-targeted DDoS, and reentrancy attacks — and recommends audits and formal verification to detect and prevent these issues before deployment.

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