IBM i: Mehrere Schwachstellen
WID-SEC-2026-3690 · first 01.10.2026 · updated 13.10.2026 · CVSS 5,4
What it is about
IBM i (früher bekannt als IBM iSeries oder IBM System i) ist ein Betriebssystem, das auf IBM Power Systems Servern läuft und für Geschäftsanwendungen entwickelt wurde. Ein Angreifer kann mehrere Schwachstellen in IBM i ausnutzen, um Daten zu manipulieren, um Informationen offenzulegen und um einen Denial of Service Angriff durchzuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Daten zu manipulieren
- Informationen offenzulegen
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- IBM i 7.5
- IBM i 7.4
- IBM i 7.3
- IBM i 7.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
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 7290194 vom 2026-09-30 www.ibm.com
- IBM Security Bulletin 7290195 vom 2026-09-30 www.ibm.com
CVE: CVE-2026-18343, CVE-2026-81858
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.