Cisco Catalyst Center: Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-2026-2174 · first 02.07.2026 · updated 03.07.2026 · CVSS 7,5
What it is about
Catalyst ist der Markenname für eine Vielzahl von Netzwerk-Switches die von Cisco Systems verkauft werden. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cisco Catalyst Center ausnutzen, um Informationen offenzulegen.
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
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Cisco Catalyst Center <3.1.6 GSMU200
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Cisco Catalyst Center 3.1.6 GSMU200
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)
- Cisco Security Advisory cisco-sa-catc-file-read-wLH2vf8X vom 2026-07-01 sec.cloudapps.cisco.com
CVE: CVE-2026-20191
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.