Quick answers
- Is CVE-2023-33854 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2023-33854 being exploited in the wild.
- How severe is CVE-2023-33854?
- Medium severity, with a CVSS score of 5.3, published 22 June 2026.
- Which products and versions are affected?
- IBM Db2 on Cloud Pak for Data 4.8, 5.0, 5.1, 5.2, 5.3; IBM Db2 Warehouse on Cloud Pak for Data 4.8, 5.0, 5.1, 5.2, 5.3.
- Is there a fix for CVE-2023-33854?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2023-33854 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2023-33854?
- Check whether you run IBM Db2 on Cloud Pak for Data or IBM Db2 Warehouse on Cloud Pak for Data at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is classified as an authentication bypass by capture-replay (CWE-294). It affects IBM Db2 and Db2 Warehouse on Cloud Pak for Data versions 4.8 through 5.3. An authenticated attacker with network access could potentially bypass client-side validation mechanisms. By utilizing man-in-the-middle (MitM) techniques, the attacker can manipulate input data sent to the server. Exploitation requires a high complexity (AC:H) and existing low-level privileges (PR:L), but can result in a high impact on data integrity. IBM has released security bulletins to address these vulnerabilities in the affected Cloud Pak for Data components.
Affected products
- IBM Db2 on Cloud Pak for Data 4.8, 5.0, 5.1, 5.2, 5.3
- IBM Db2 Warehouse on Cloud Pak for Data 4.8, 5.0, 5.1, 5.2, 5.3
Timeline
- 2026-06-22: disclosed: Initial publication date
- 2026-06-22: advisory