CVE-2026-3623
HIGHDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 5% of all known CVEs.
References
Related Vulnerabilities
Other CWE-250 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-1222 | High | 8.6 | 64% | - | Fix |
| CVE-2025-12420 | Critical | 9.8 | 46% | - | Fix |
| CVE-2024-38813 | High | 7.5 | 17% | KEV | Fix |
| CVE-2026-29205 | High | 8.6 | 8.2% | - | Fix |
| CVE-2025-34515 | Critical | 9.8 | 7.4% | - | - |
| CVE-2019-16765 | High | 7.4 | 5.0% | - | Fix |
Common questions
How do I fix CVE-2026-3623?
Upgrade netezza performance server replication services to 3.0.5.1 or later.
Is CVE-2026-3623 being actively exploited?
Not that we know of. CVE-2026-3623 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.15% is the estimated probability that it will be exploited in the next 30 days. That is higher than 5% of all scored CVEs.
How severe is CVE-2026-3623?
CVE-2026-3623 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-3623 affect?
Published advisories record a fix for netezza performance server replication services (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.