SDWAN

Cisco fixes exploited zero-day vulnerability in Catalyst SD-WAN

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Cisco fixes exploited zero-day vulnerability in Catalyst SD-WAN

Cisco on Wednesday deployed urgent patches for a critical authentication bypass in Catalyst SD-WAN Manager that has been exploited in the wild. The flaw, tracked as CVE-2026-76504 (CVSS score 9.8), impacts the session-based API authentication mechanism and could allow remote, unauthenticated attackers to gain administrative access to a vulnerable system. “In September 2026, the Cisco … Read more

Cisco warns of new SD-WAN zero-day attacks

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Cisco warns of new SD-WAN zero-day attacks

Cisco has released security updates to address a critical zero-day in Catalyst SD-WAN Manager (tracked as). CVE-2026-76504), which attackers actively exploit to gain administrator rights. Catalyst SD-WAN Manager, formerly known as SD-WAN vManage, is network management software that allows administrators to monitor and manage up to 6,000 SD-WAN devices from a single dashboard. “In September … Read more