A lottery smart contract implementation for Greedy 599, an Ethereum gambling game, generates a random value that is predictable via an external contract call
Published Oct 23, 2018
7.5
HIGHCVSS 3.0
EPSS 1.64%
Description
A lottery smart contract implementation for Greedy 599, an Ethereum gambling game, generates a random value that is predictable via an external contract call. The developer used the extcodesize() function to prevent a malicious contract from being called, but the attacker can bypass it by writing the core code in the constructor of their exploit code. Therefore, it allows attackers to always win and get rewards.
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:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/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 v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.64% (0.01637) | 75.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.64% (0.01637) | 73.16th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.59% (0.00588) | 78.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.59% (0.00588) | 77.56th | v3 (v2023.03.01) |
| Jul 10, 2023 | 0.59% (0.00588) | 75.28th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.41% (0.00414) | 69.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (1)
- https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17877 x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17877 | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.