A vulnerable node can be forced to shutdown/crash using a specially crafted message. More details to be released later.
The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth.
This issue was reported to the Ethereum Foundation Bug Bounty Program by Waleed Ahmed from vulsight.com
{
"nvd_published_at": "2026-02-19T22:16:46Z",
"github_reviewed_at": "2026-02-18T22:35:15Z",
"severity": "HIGH",
"cwe_ids": [
"CWE-20"
],
"github_reviewed": true
}