CVE-2018-12885
Therefore, attackers can get powerful champs/items and get rewards.
Does this matter?
Lower severity and a low EPSS score (1.39%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.39% probability · 72th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-338
- Affected
- mycryptochamp/mycryptochamp
- Source
- cve@mitre.org
EPSS 1.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2DcThird Party Advisory
- https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430Third Party Advisory
- https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8dfExploit, Third Party Advisory
- https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2DcThird Party Advisory
- https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430Third Party Advisory
- https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8dfExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.