CVE-2026-3623
CVE-2026-3623 is a high-severity vulnerability in Ibm Netezza Performance Server Replication Services with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-250.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-32279
- Weakness: CWE-250
- Affected product: Ibm Netezza Performance Server Replication Services
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-3623?
- 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 severe is CVE-2026-3623?
- CVE-2026-3623 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-3623 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-3623?
- CVE-2026-3623 affects Ibm Netezza Performance Server Replication Services. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-3623?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-3623 have an EU (EUVD) identifier?
- Yes. CVE-2026-3623 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32279.
- When was CVE-2026-3623 published?
- CVE-2026-3623 was published on 2026-05-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ibm:netezza_performance_server_replication_services:*:*:*:*:*:*:*:*
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