Hack history / 2025 / Hack or exploit
Impermax V3
Hack or exploit on Apr 26, 2025 · Incorrect Fee Accounting
ATTACK TX CONFIRMED ON CHAININ REVIEWSOURCES DISAGREE ON DATE OR LOSS · 3 SOURCES
Lost
$300K
sources: $63K to $400K
Returned
none listed
as the sources state it
Rank
#1,319
among thefts by dollars lost
What happened
On April 26, 2025, Impermax V3 on Base was exploited for $300K via fee accounting mismatch in collateral valuation. Attacker manipulated LP pool price ticks, accumulated fees, then overborrowed against LP collateral with incorrectly valued uncollected fees.
In review: sources disagree on the loss.
Details
- Date
- Apr 26, 2025
- Kind
- Hack or exploit
- Method
- Incorrect Fee Accounting
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Base
Reported by
Related incidents
Impermax V3 2025 · Hack or exploit · $380K
Impermax 2022 · Hack or exploit · $9M
RANT 2025 · Hack or exploit · $204K
Impermax 2022 · Hack or exploit · $9M
RANT 2025 · Hack or exploit · $204K
Cite this page
SwanBluechip, "Impermax V3 hack, Apr 26, 2025: $300K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/ht0ab1037f7a/ (data as of 2026-10-31).