Broadcom Fabric OS: Mehrere Schwachstellen
WID-SEC-2026-0245 · first 28.01.2026 · updated 04.02.2026 · CVSS 7,8
What it is about
Fabric OS (FOS) ist ein Betriebssystem für FibreChannel Switches. Ein Angreifer kann mehrere Schwachstellen in Broadcom Fabric OS ausnutzen, um Berechtigungen zu erweitern, beliebigen Code auszuführen oder vertrauliche Informationen offenzulegen.
Under what conditions?
The BSI does not name any particular preconditions.
What can happen in the worst case
An attacker could use the vulnerability to
- Berechtigungen zu erweitern
- beliebigen Code auszuführen oder vertrauliche Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Broadcom Fabric OS <10.0.0
- Broadcom Fabric OS <9.2.2b
- Broadcom Fabric OS <9.2.1c2
- Broadcom Fabric OS <9.2.2
- Broadcom Fabric OS <9.2.1
- Broadcom Fabric OS <10.0.0a
- Broadcom Fabric OS <9.2.2c
- Broadcom Fabric OS <9.2.1c3
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Broadcom Fabric OS 10.0.0
- Broadcom Fabric OS 9.2.2b
- Broadcom Fabric OS 9.2.1c2
- Broadcom Fabric OS 9.2.2
- Broadcom Fabric OS 9.2.1
- Broadcom Fabric OS 10.0.0a
- Broadcom Fabric OS 9.2.2c
- Broadcom Fabric OS 9.2.1c3
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)
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
- Brocade Security Advisory vom 2026-01-27 support.broadcom.com
CVE: CVE-2025-58379, CVE-2025-58383, CVE-2025-58381, CVE-2025-9711, CVE-2026-0383, CVE-2025-58380
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.