IBM DB2: Schwachstelle ermöglicht Manipulation von Dateien
WID-SEC-2026-3351 · first 15.09.2026 · updated 26.10.2026 · CVSS 7,5
What it is about
IBM DB2 ist ein relationales Datenbanksystem (RDBS) von IBM. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in IBM DB2 ausnutzen, um Dateien zu manipulieren.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- Dateien zu manipulieren
Am I affected?
Affected according to the BSI:
- IBM License Metric Tool
- IBM DB2 <11.5.9 DT475647
- IBM DB2 <12.1.4 DT475647
- IBM DB2 <12.1.5 DT475647
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- IBM DB2 11.5.9 DT475647
- IBM DB2 12.1.4 DT475647
- IBM DB2 12.1.5 DT475647
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- IBM Security Bulletin vom 2026-09-14 www.ibm.com
- GitHub Security Advisory GHSA-f5h9-pfrj-8wrc vom 2026-09-14 github.com
- IBM Security Bulletin 7293833 vom 2026-10-23 www.ibm.com
CVE: CVE-2026-15955
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.