On February 2025, StepHeroNFTs suffered a reentrancy — the first of 51 documented reentrancy incidents in our archive where the loss figure was not publicly disclosed but the exploit pattern is documented below.
Attack Mechanics: How the StepHeroNFTs Reentrancy Played Out
Exploit Class Applied to StepHeroNFTs
The StepHeroNFTs incident on February 21, 2025 is classified as a Reentrancy. A malicious contract re-enters a vulnerable function before state is updated, letting it drain funds multiple times. In the full archive, StepHeroNFTs is 1 of 51 documented reentrancy incidents.
StepHeroNFTs in Context
The StepHeroNFTs incident joins a class whose largest loss to date is Curve (2023) at $41M.
Prior Reentrancy Before StepHeroNFTs
The nearest reentrancy incident before StepHeroNFTs was Bizness, 56 days earlier on December 27, 2024 ($15.7K lost). The same exploit class surfaced again within the reentrancy attack surface.
StepHeroNFTs Vulnerability Signature
The primary source categorises the StepHeroNFTs exploit specifically as “Reentrancy On Sell NFT”. This narrower label is entity-specific: it reflects how the StepHeroNFTs contract failed, rather than the broad reentrancy pattern alone.
Impact & Recovery for StepHeroNFTs
StepHeroNFTs Loss Figure
The loss figure for StepHeroNFTs is not publicly disclosed. The primary source reports the exploit in non-USD terms, so no USD estimate is published here. For reference, the average loss across 51 reentrancy incidents in our archive is $2.87M.
Timeline Since the StepHeroNFTs Incident
The StepHeroNFTs exploit occurred 1.1 years ago (417 days). The contract, its fork-block, and the attack transaction remain on-chain and forensically reproducible.
Primary Reference for StepHeroNFTs
Public post-mortem / on-chain analysis for the StepHeroNFTs incident: view source.
FAQ
How much did StepHeroNFTs lose?
The StepHeroNFTs loss figure is not publicly disclosed. The primary source reports the exploit in non-USD token terms, so no USD estimate is published here.
When did the StepHeroNFTs hack happen?
The StepHeroNFTs exploit was recorded on February 21, 2025 — 417 days ago.
What type of exploit hit StepHeroNFTs?
The StepHeroNFTs incident is classified as a Reentrancy. A malicious contract re-enters a vulnerable function before state is updated, letting it drain funds multiple times.
How common is the Reentrancy pattern seen at StepHeroNFTs?
Our archive contains 51 documented reentrancy incidents. The StepHeroNFTs incident is one of them.
How does StepHeroNFTs compare to the largest Reentrancy attack?
The largest reentrancy incident in our archive is Curve (2023) at $41M. The StepHeroNFTs loss was not publicly disclosed.
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