What’s Vulnerable › Vulnerabilities

CVE-2018-15552

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-07 · updated 2026-06-17
• Weakness: CWE-338

Description

The "PayWinner" function of a simplelottery smart contract implementation for The Ethereum Lottery, an Ethereum gambling game, generates a random value with publicly readable variable "maxTickets" (which is private, yet predictable and readable by the eth.getStorageAt function). Therefore, it allows attackers to always win and get rewards.

Affected products

• Theethereumlottery The Ethereum Lottery: all versions

References

• https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552
• https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552

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