Hack history / 2020 / Hack or exploit
VETH
Hack or exploit on Jul 1, 2020 · Contract Vulnerability
ONE SOURCE · 1 SOURCE
Lost
$900K
dollars at the time
Returned
none listed
as the sources state it
Rank
#971
among thefts by dollars lost
What happened
Coingecko researcher Daryllautk tweeted that VETH suffered a hacker attack on the decentralized exchange Uniswap. The hacker stole 919,299 VETH (worth $900,000) using only 0.9ETH. After the attack, VETH officially stated that the contract was used by the UX improvement it placed in transferForm(), which was their fault. They will redeploy vether4 and will compensate all affected Uniswap pledgers. This attack mainly uses the visibility of the changeExcluded function in the contract to be external and there is no permission restriction. The user can directly make external calls to create the necessary conditions for the attack.
Details
- Date
- Jul 1, 2020
- Kind
- Hack or exploit
- Method
- Contract Vulnerability
- How in
- Smart contract bug
- Target
- not stated
- Chains
- Ethereum
After the theft
- Victims reimbursed
- yes, amount not stated
“They will redeploy vether4 and will compensate all affected Uniswap pledgers.” (SlowMist Hacked)
Reported by
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Cite this page
SwanBluechip, "VETH hack, Jul 1, 2020: $900K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht5ce390cdab/ (data as of 2026-11-01).