ERC-777/1155/721 hook without reentrancy guard

Falcon Finance's assessment for RD-F-015 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

USDf and sUSDf are ERC-20 contracts with no ERC-777/1155/721 integration identified. Falcon Position NFT is peripheral (position tracking only, not core TVL). No audit finding flags callback hook risk.

Detail #

The audited core contracts (USDf, sUSDf) are standard ERC-20 and ERC4626 staking contracts without ERC-777 token hooks. The Falcon Position NFT (0x8407e986...) is a peripheral position-tracking NFT, not a core fund-holding contract. No Zellic or Pashov finding flags ERC-777/1155/721 callback risks.

Sources #

Docs
Falcon Finance Smart ContractsFalcon Finance smart contracts page: Position NFT is peripheralretrieved 2026-05-12
Audit
Zellic Falcon Finance AuditZellic: no ERC-777/callback hook findingsretrieved 2026-05-12

Methodology #

Determine whether the protocol integrates token standards with callbacks (ERC-777 tokensReceived, ERC-1155 onReceived, ERC-721 onReceived) without reentrancy guards on the affected functions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol falcon-finance factor RD-F-015 score green collected_at 2026-05-12 04:06:37