Jenkins 2.218 and earlier, LTS 2.204.1 and earlier was vulnerable to a UDP amplification reflection denial of service attack on port 33848.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.204.1"
},
{
"introduced": "0"
},
{
"last_affected": "2.218"
}
]
}