CVE-2021-3004 json
The _deposit function in the smart contract implementation for Stable Yield Credit (yCREDIT), an Ethereum token, has certain incorrect calc…
published 2021-01-03 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26359
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
The _deposit function in the smart contract implementation for Stable Yield Credit (yCREDIT), an Ethereum token, has certain incorrect calculations. An attacker can obtain more yCREDIT tokens than they should.
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blocksecteam.medium.com https://blocksecteam.medium.com/deposit-less-get-more-ycredit-attack-details-f589f71674c3 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-682 Incorrect Calculation
References
-
blocksecteam.medium.com
/deposit-less-get-more-ycredit-attack-details-f589f71674c3
exploit, third-party-advisory
-
etherscan.io
/address/0xe0839f9b9688a77924208ad509e29952dc660261
third-party-advisory
Sources
- CVE List CVE-2021-3004
- NVD CVE-2021-3004
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