According to PANews, Port3 Network has released a report on a hacking incident via the X platform, highlighting a security vulnerability in the cross-chain token solution CATERC20, developed by NEXA Network. The report reveals that CATERC20 has a boundary condition verification flaw. When token ownership is relinquished, the function returns a value of 0, which coincidentally matches the ownership verification condition. This results in a failure of the ownership check, potentially allowing unauthorized access. The audit report for CATERC20 did not identify this issue. Port3 tokens had previously relinquished ownership to achieve greater decentralization, leaving them susceptible to this vulnerability.