CVE-2026-3623: IBM Netezza Performance Server Replication Services

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

IBM Netezza Performance Server Replication Services 3.0.2.0 through 3.0.5.0 allows an attacker with low‑privileged access to escalate their privileges to root. By exploiting this flaw, the attacker can execute root‑level commands, obtain a root shell, and change the root user’s password. Successful exploitation also enables modification or removal of system‑wide files and the installation of persistent backdoors. This results in full system compromise with complete loss of confidentiality, integrity, and availability.

Affected products

• IBM Netezza Performance Server Replication Services: from 3.0.2.0, before 3.0.5.1 (fixed in 3.0.5.1)

Published 2026-05-27. Last modified 2026-06-17.