Cisco SD-WAN Manager Authentication 0-day Vulnerability Actively Exploited in the Wild

Cisco has disclosed a critical authentication bypass vulnerability in Cisco Catalyst SD-WAN Manager that attackers are actively exploiting. The flaw, tracked as CVE-2026-76504, could allow an unauthenticated remote attacker to gain administrative access to vulnerable SD-WAN management systems. The vulnerability received a CVSS score of 9.8 and affects Cisco Catalyst SD-WAN Manager regardless of its […]

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