The __construct function in Framework/Encryption/Crypt.php in Magento 2 uses the PHP rand function to generate a random number for the initialization vector, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by guessing the value.
{
"github_reviewed": true,
"severity": "HIGH",
"nvd_published_at": null,
"cwe_ids": [
"CWE-327"
],
"github_reviewed_at": "2019-11-19T01:07:44Z"
}