Cisco Industrial Ethernet 1000 Series Switches: Mehrere Schwachstellen
WID-SEC-2026-2931 · first 20.08.2026 · updated 20.08.2026 · CVSS 5,4
What it is about
Cisco Industrial Ethernet Series ist eine Familie von Switches für eine robuste, einfach zu bedienende, sichere Infrastruktur für raue Umgebungen. Ein Angreifer kann mehrere Schwachstellen in Cisco Industrial Ethernet Switches ausnutzen, um einen Denial of Service Angriff durchzuführen oder Cross-Site-Scripting-Angriffe 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
- einen Denial of Service Angriff durchzuführen oder Cross-Site-Scripting-Angriffe durchzuführen
Am I affected?
Affected according to the BSI:
- Cisco Industrial Ethernet Switches 1000 Series <1.9.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Cisco Industrial Ethernet Switches 1000 Series 1.9.6
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-ie1k-uxq86Lnx vom 2026-08-19 sec.cloudapps.cisco.com
- Cisco Security Advisory cisco-sa-ie1k-NgXUFF52 vom 2026-08-19 sec.cloudapps.cisco.com
CVE: CVE-2026-20177, CVE-2026-20232
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.