CVSS 3.0
5.9 mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2018-12885
Medium (5.9) in mycryptochamp mycryptochamp. 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.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-338
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mycryptochamp:mycryptochamp
References
- https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc
- https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430
- https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df
- https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc
- https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430