CVE-2026-20127

Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability

Catalyst Sd-Wan Manager

A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, and Cisco Catalyst SD-WAN Validator, formerly SD-WAN vBond, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system. This vulnerability exists because the peering authentication mechanism in an affected system is not working properly. An…

25. Feb 2026

Ausgewertete Quellen

• Hersteller
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa-EHchtZk
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20127
• CISA
  Cisco Catalyst SD-WAN Controller and Manager Authentication Bypass Vulnerability
• NVD
  CVE-2026-20127