Cisco Catalyst SD-WAN Manager: Mehrere Schwachstellen
WID-SEC-2026-1540 · first 15.05.2026 · updated 15.05.2026 · CVSS 8,6
What it is about
Cisco Catalyst SD-WAN ist eine Netzwerklösung, die Software-definierte Wide-Area-Networking-Funktionen (SD-WAN) mit Cisco Catalyst Series Switches kombiniert, um die Netzwerkleistung an verteilten Standorten zu optimieren und zu sichern. Ein Angreifer kann mehrere Schwachstellen in Cisco Catalyst SD-WAN Manager ausnutzen, um seine Privilegien zu erhöhen, und um Informationen offenzulegen.
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
- seine Privilegien zu erhöhen
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Cisco Catalyst SD-WAN Manager <20.9.9.1
- Cisco Catalyst SD-WAN Manager <20.12.7.1
- Cisco Catalyst SD-WAN Manager <20.12.5.4
- Cisco Catalyst SD-WAN Manager <20.12.6.2
- Cisco Catalyst SD-WAN Manager <20.15.5.2
- Cisco Catalyst SD-WAN Manager <20.15.4.4
- Cisco Catalyst SD-WAN Manager <20.18.2.2
- Cisco Catalyst SD-WAN Manager <26.1.1.1
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Cisco Catalyst SD-WAN Manager 20.9.9.1
- Cisco Catalyst SD-WAN Manager 20.12.7.1
- Cisco Catalyst SD-WAN Manager 20.12.5.4
- Cisco Catalyst SD-WAN Manager 20.12.6.2
- Cisco Catalyst SD-WAN Manager 20.15.5.2
- Cisco Catalyst SD-WAN Manager 20.15.4.4
- Cisco Catalyst SD-WAN Manager 20.18.2.2
- Cisco Catalyst SD-WAN Manager 26.1.1.1
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-sdwan-mltvnps2-JxpWm7R vom 2026-05-14 sec.cloudapps.cisco.com
CVE: CVE-2026-20209, CVE-2026-20210, CVE-2026-20224
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.