CVE-2018-12885: Mycryptochamp

Medium severity, CVSS 5.9. EPSS: 1.4% chance of exploitation in the next 30 days.

The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.

Affected products

Published 2018-08-07. Last modified 2026-06-17.