Hack history / 2021 / Hack or exploit
SurgeBNB
Hack or exploit on Aug 16, 2021 · Reentrancy
ATTACK TX CONFIRMED ON CHAINSOURCES AGREE ON DATE AND LOSS · 3 SOURCES
Lost
$5M
dollars at the time
Returned
none listed
as the sources state it
Rank
#452
among thefts by dollars lost
What happened
SurgeBNB suffered a reentrancy attack funded by a 10,000 BNB flash loan. The sell function updated balances after external calls, letting attacker repeatedly withdraw value.
Details
- Date
- Aug 16, 2021
- Kind
- Hack or exploit
- Method
- Reentrancy
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- BNB Chain
Reported by
Related incidents
Grim Finance 2021 · Hack or exploit · $30M
CREAM Lending 2021 · Hack or exploit · $18.8M
flash.sx / vaults.sx 2021 · Hack or exploit · $13M
Gamma 2021 · Hack or exploit · $8.2M
BurgerSwap 2021 · Hack or exploit · $7.2M
CREAM Lending 2021 · Hack or exploit · $18.8M
flash.sx / vaults.sx 2021 · Hack or exploit · $13M
Gamma 2021 · Hack or exploit · $8.2M
BurgerSwap 2021 · Hack or exploit · $7.2M
Cite this page
SwanBluechip, "SurgeBNB hack, Aug 16, 2021: $5M lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht200e0c70b0/ (data as of 2026-11-01).