VULNERABILITY INTELLIGENCE
CVE-2018-14715
CVSS score7.5 HIGH
EPSS probability1.25%
CISA KEVNot currently listed
Published2018-08-03
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
The endCoinFlip function and throwSlammer function of the smart contract implementations for Cryptogs, an Ethereum game, generate random numbers with an old block's hash. Therefore, attackers can predict the random number and always win the game.
Weakness classification
- CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)