CVE-2021-41138

Frontier is Substrate's Ethereum compatibility layer. In the newly introduced signed Frontier-specific extrinsic for pallet-ethereum, a large part of transaction validation logic was only called in transaction pool validation, but not in block execution. Malicious validators can take advantage of...

CVE-2022-31111

Frontier is Substrate's Ethereum compatibility layer. In affected versions the truncation done when converting between EVM balance type and Substrate balance type was incorrectly implemented. This leads to possible discrepancy between appeared EVM transfer value and actual Substrate value...

EUVD-2021-2079

Malware in sbrugna...

EUVD-2021-2260

Malware in sbrugna...

EUVD-2025-22951

Malicious code in bioql PyPI...

EUVD-2022-6940

Malicious code in bioql PyPI...

EUVD-2023-0996

Malicious code in bioql PyPI...

EUVD-2025-22949

Malicious code in bioql PyPI...

EUVD-2025-22944

Malicious code in bioql PyPI...

EUVD-2022-0562

Malicious code in bioql PyPI...

EUVD-2022-6586

Malicious code in bioql PyPI...

CVE-2025-54429

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. There are various account address types in Frontier, e.g. precompiled contracts, smart contracts, and externally owned accounts. Some EVM mechanisms should be unreachable by certain types of accounts for...

CVE-2025-54427

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. The extrinsic notemingaspricetarget is an inherent extrinsic, meaning only the block producer can call it. To ensure correctness, the ProvideInherent trait should be implemented for each inherent, which...

CVE-2025-54429

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. There are various account address types in Frontier, e.g. precompiled contracts, smart contracts, and externally owned accounts. Some EVM mechanisms should be unreachable by certain types of accounts for...

CVE-2025-54427 Polkadot Frontier contains missing `check_inherent` for `note_min_gas_price_target` inflates gas price

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. The extrinsic notemingaspricetarget is an inherent extrinsic, meaning only the block producer can call it. To ensure correctness, the ProvideInherent trait should be implemented for each inherent, which...

CVE-2025-54427 Polkadot Frontier contains missing `check_inherent` for `note_min_gas_price_target` inflates gas price

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. The extrinsic notemingaspricetarget is an inherent extrinsic, meaning only the block producer can call it. To ensure correctness, the ProvideInherent trait should be implemented for each inherent, which...

PT-2025-31152 · Parity Technologies · Polkadot Frontier

Name of the Vulnerable Software and Affected Versions: Polkadot Frontier versions prior to a754b3d Description: Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. The note min gas price target extrinsic is an inherent extrinsic, callable only by the block...

CVE-2022-21685

Frontier is Substrate's Ethereum compatibility layer. Prior to commit number 8a93fdc6c9f4eb1d2f2a11b7ff1d12d70bf5a664, a bug in Frontier's MODEXP precompile implementation can cause an integer underflow in certain conditions. This will cause a node crash for debug builds. For release builds and...

CVE-2022-39242

Frontier is an Ethereum compatibility layer for Substrate. Prior to commit d3beddc6911a559a3ecc9b3f08e153dbe37a8658, the worst case weight was always accounted as the block weight for all cases. In case of large EVM gas refunds, this can lead to block spamming attacks -- the adversary can constru...

Design/Logic Flaw

Frontier is Substrate's Ethereum compatibility layer. Prior to commit aea528198b3b226e0d20cce878551fd4c0e3d5d0, at the end of a contract execution, when opcode SUICIDE marks a contract to be deleted, the software uses storage::removeprefix now renamed to storage::clearprefix to remove all storage...