Critical Vulnerability in Cisco Catalyst SD-WAN Manager Under Active Exploitation

A critical vulnerability (CVE-2026-76504) in Cisco Catalyst SD-WAN Manager is being actively exploited by attackers. The flaw, with a CVSS v3.1 score of 9.8, allows unauthenticated, remote attackers to bypass authentication and gain administrative access due to improper handling of URI encoding in HTTP requests. Users are urged to patch immediately.