DeFi Smart Contract Vulnerabilities Audit Guide

Here's a thinking process:

1. Understand User Request:

   • User wants 3 DeFi smart contract vulnerabilities for an audit report
   • Must be specific
   • Format: Descriptions suitable for an audit report

2. Identify Key DeFi Vulnerability Categories:

   • Reentrancy
   • Access Control / Privilege Escalation
   • Arithmetic Issues (overflow/underflow, though less common now with Solidity ^0.8.0)
   • Logic Flaws / Economic Incentive Issues
   • Front-running / MEV related
   • Oracle manipulation
   • Token standards issues (ERC-20, ERC-777, etc.)
   • Timestamp dependency
   • Integer rounding/truncation errors
   • Withdrawal/Deposit bugs

I need to pick 3 that are highly relevant, specific, and commonly found in audits, with