CVE-2018-15552

Name: CVE-2018-15552
Creator: NVD / NIST
Published: 2018-09-07T22:29:01.617+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2018-15552 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.17%

63.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-338

Affected Software

Vendor	Product	Versions
Theethereumlottery	The Ethereum Lottery	All versions

References

https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552Exploit, Third Party Advisory
https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552Exploit, Third Party Advisory

Timeline

Published: Sep 7, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-15552?

How severe is CVE-2018-15552?

CVE-2018-15552 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2018-15552?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-15552?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST