5.3Medium
Ibm Db2
CVE-2023-33854
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.
What this means for your business
- It affects Ibm Db2. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 14% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Ibm Db2, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 5.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N- Weakness
- CWE-294
- Assigned by
- psirt@us.ibm.com
Dates
- Published
- 2026-06-22
- Last modified
- 2026-09-26
- Sources
- NVD
Affected products
- Ibm Db24.8 - 5.4
- Ibm Db2 Warehouse4.8 - 5.4
- Ibm Cloud Pak For Dataall versions
As listed in the NVD configuration data. Not a statement about your estate.