Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability
At a glance
Severity
CRITICAL 9.8
Exploitation
Known exploited (CISA KEV) · added 2026-09-30 Exploited per ENISA since 2026-09-30
EPSS
EPSS 38.93 % · percentile 99 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed
Description
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 crafted HTTP request to the API of the affected system. A successful exploit could allow the attacker to bypass authentication and gain access to the API as the admin user.
