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CVE-2021-3004

24
FAUCET Score

CVE-2021-3004 describes a critical vulnerability in the Stable Yield Credit (yCREDIT) Ethereum token's smart contract, specifically within its _deposit function, which contains incorrect calculations. This flaw allows an attacker to illicitly mint and obtain more yCREDIT tokens than they are entitled to. With a CVSS score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, leading to a high impact on integrity. While there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, the potential for financial manipulation remains.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:stableyieldcredit_project:stableyieldcredit:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 46th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blocksecteam.medium.com / deposit-less-get-more-ycredit-attack-details-f589f71674c3
ExploitThird Party Advisory
etherscan.io / address/0xe0839f9b9688a77924208ad509e29952dc660261
Third Party Advisory