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Netezza Performance Server CVE-2026-3623

| EUVD-2026-32279 HIGH
Execution with Unnecessary Privileges (CWE-250)
2026-05-27 psirt@us.ibm.com GHSA-wwj4-rjmm-2rvv
7.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Analysis Generated
May 27, 2026 - 20:56 vuln.today

DescriptionNVD

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.

AnalysisAI

Local privilege escalation in IBM Netezza Performance Server Replication Services (versions 3.0.2.0 through 3.0.5.0) allows an already-authenticated, low-privileged user on the appliance to gain full root control. By abusing the over-privileged Replication Services component the attacker can execute root-level commands, spawn a root shell, reset the root password, alter or delete system-wide files, and plant persistent backdoors, resulting in complete loss of confidentiality, integrity, and availability. …

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RemediationAI

24 hours: Identify and inventory all IBM Netezza Performance Server Replication Services deployments and confirm version numbers (specifically 3.0.2.0-3.0.5.0). 7 days: Restrict local/console access to the appliance to authorized administrators only; review and minimize privileged user accounts; enable detailed logging of administrative activities. …

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CVE-2026-3623 vulnerability details – vuln.today

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