An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin (BEC), the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two _receivers arguments in conjunction with a large _value argument, as exploited in the wild in April 2018, aka the "batchOverflow" issue
Published Apr 23, 2018
7.5
HIGHCVSS 3.0
EPSS 2.67%
Description
An integer overflow in the batchTransfer function of a smart contract implementation for Beauty Ecosystem Coin (BEC), the Ethereum ERC20 token used in the Beauty Chain economic system, allows attackers to accomplish an unauthorized increase of digital assets by providing two _receivers arguments in conjunction with a large _value argument, as exploited in the wild in April 2018, aka the "batchOverflow" issue.
Affected products
No data.
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.67% (0.02665) | 85.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.78% (0.02781) | 84.45th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.11% (0.01110) | 76.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.31% (0.10306) | 88.54th | v4 (v2025.03.14) |
| Mar 28, 2025 | 1.11% (0.01110) | 76.17th | v4 (v2025.03.14) |
| Mar 27, 2025 | 10.31% (0.10306) | 92.05th | v4 (v2025.03.14) |
| Mar 20, 2025 | 1.15% (0.01153) | 76.67th | v4 (v2025.03.14) |
| Mar 19, 2025 | 10.66% (0.10658) | 92.36th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.74% (0.00736) | 81.03th | v3 (v2023.03.01) |
| Mar 23, 2024 | 0.74% (0.00736) | 80.42th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.28% (0.00277) | 67.29th | v3 (v2023.03.01) |
| Sep 14, 2023 | 0.28% (0.00277) | 64.26th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.23% (0.00230) | 59.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.25% (0.00250) | 61.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.45% (0.01454) | 32.67th | v1 |
| Jan 6, 2022 | 1.45% (0.01454) | 31.96th | v1 |
| Sep 1, 2021 | 1.45% (0.01454) | 71.88th | v1 |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
References (6)
- https://dasp.co/#item-3 x_refsource_MISCExploitThird Party Advisory
- https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30e x_refsource_MISCExploitThird Party Advisory
- https://peckshield.com/2018/04/22/batchOverflow/ x_refsource_MISCExploitThird Party Advisory
- https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-Suspended x_refsource_MISCThird Party Advisory
- https://twitter.com/OKEx_/status/987967343983714304 x_refsource_MISCThird Party Advisory
- https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/ x_refsource_MISCIssue TrackingThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://dasp.co/#item-3 | x_refsource_MISCExploitThird Party Advisory | |
| https://medium.com/secbit-media/a-disastrous-vulnerability-found-in-smart-contracts-of-beautychain-bec-dbf24ddbc30e | x_refsource_MISCExploitThird Party Advisory | |
| https://peckshield.com/2018/04/22/batchOverflow/ | x_refsource_MISCExploitThird Party Advisory | |
| https://support.okex.com/hc/en-us/articles/360002944212-BeautyChain-BEC-Withdrawal-and-Trading-Suspended | x_refsource_MISCThird Party Advisory | |
| https://twitter.com/OKEx_/status/987967343983714304 | x_refsource_MISCThird Party Advisory | |
| https://www.reddit.com/r/ethereum/comments/8esyg9/okex_erc20_bug/ | x_refsource_MISCIssue TrackingThird Party Advisory |
Change history (0)
No recorded changes yet.