CVE-2023-30223: 4d Server

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

A broken authentication vulnerability in 4D SAS 4D Server software v17, v18, v19 R7, and earlier allows attackers to send crafted TCP packets containing requests to perform arbitrary actions.

Affected products

• 4d Server: version 17 only; version 18 only; version 19 only

Published 2023-06-16. Last modified 2026-06-17.