CVE-2026-76504

Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability

Catalyst Sd-Wan Manager

A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user. This vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a…

30. Sep 2026

Ausgewertete Quellen

• Hersteller
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-webauth-xr8beuuU
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-76504
• CISA
  Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability
• NVD
  CVE-2026-76504