fmc

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Networking and firewall equipment mounted in a server rack

Cisco's firewall management tool shipped with a hidden login — and attackers found it first

CVE-2026-20316 is a static-credential bug in Secure FMC that's already on CISA's Known Exploited Vulnerabilities list, with a federal patch deadline of August 1.

Priya Nair · 2h ago · 6 min