TI-2018-12711 Aliases CVE-2018-17877 GHSA-qp5m-38pc-fmj4

A lottery smart contract implementation for Greedy 599, an Ethereum gambling game…

LOW 36CWE-338Published 2018-10-23 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01637 76th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:greedy599:greedy_599:-:::::::*	not specified by NVD	Vulnerable	Greedy599

cpe:2.3:a:greedy599:greedy_599:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Greedy599

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-17877
2026-10-03 Alias added: GHSA-qp5m-38pc-fmj4

References

Exploit 1

https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17877

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences