Cisco SD-WAN CVE-2026-20182: maximum-severity flaw under active exploitation, CISA patch deadline today

A maximum-severity Cisco SD-WAN flaw, CVE-2026-20182, is under active attack right now. CISA ordered every US federal agency to patch by today, May 17. The threat actor UAT-8616 is targeting telecom, finance, government and healthcare networks worldwide.

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