An issue was discovered in EthereumJ 1.8.2. There is Unsafe Deserialization in ois.readObject in mine/Ethash.java and decoder.readObject in crypto/ECKey.java. When a node syncs and mines a new block, arbitrary OS commands can be run on the server.
{
"github_reviewed_at": "2019-07-26T09:08:20Z",
"cwe_ids": [
"CWE-502"
],
"severity": "CRITICAL",
"github_reviewed": true,
"nvd_published_at": "2019-06-20T17:15:00Z"
}