CVE-2023-33854: IBM DB2

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, and 5.3 could allow an authenticated user to bypass client-side validation and manipulate input data using man in the middle techniques.

Affected products

• IBM DB2: from 4.8, before 5.4 (fixed in 5.4)
• IBM DB2 Warehouse: from 4.8, before 5.4 (fixed in 5.4)

Published 2026-06-22. Last modified 2026-09-26.