Cisco warns of new SD-WAN zero-day exploited in attacks
Cisco disclosed CVE-2026-76504, an actively exploited zero-day in Catalyst SD-WAN Manager that lets attackers bypass authentication and escalate to admin—demanding emergency patching across enterprise WAN estates.
Summary written by editorial AI · Source link below
Cisco released security updates to address a critical zero-day in the Catalyst SD-WAN Manager (tracked as CVE-2026-76504) that attackers are actively exploiting to escalate to admin privileges. [...]
Editorial Analysis
Cisco SD-WAN is backbone infrastructure for many European enterprises; admin-level compromise of its management plane can enable lateral movement across the entire WAN fabric.
Apply Cisco's emergency patch for CVE-2026-76504 immediately, restrict management-plane access to trusted networks, and hunt for prior compromise.
An actively exploited Cisco SD-WAN zero-day allowing full admin takeover requires immediate patching to protect enterprise network infrastructure.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at BleepingComputer in a new tab.
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