The convergence of Ethereum’s EVM with the Cosmos ecosystem introduces powerful interoperability through precompiled contracts that allow EVM transactions to interact with native Cosmos modules like staking and governance. However, this integration also exposes critical security risks due to differences in how each system manages state. Key vulnerabilities include incomplete state commits, inconsistencies when EVM transactions revert without rolling back Cosmos state, and partial state writes caused by out-of-gas errors during precompile execution. These issues could lead to atomicity failures, fund leakage, and validator instability. Patches introduced in Evmos versions 17.0.0 and 19.0.0, along with atomic execution safeguards like RunAtomic(), have been implemented to address these problems. Securing this hybrid architecture is essential for the future of layered chains that bridge Ethereum and Cosmos functionality.