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Exploited in the wild Secure Firewall Management Center (FMC) network-edge Cisco zero-day

Cisco FMC static credentials exploited by attackers (CVE-2026-20316)

Help Net Security·By Zeljka Zorz··3 min read
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Attackers are actively exploiting a static credentials vulnerability (CVE-2026-20316) in Cisco's Secure Firewall Management Center (FMC), according to CISA. This issue allows unauthorized access using default account details, potentially leading to data exposure and privilege escalation. Cisco has issued hotfixes and guidance for detecting signs of compromise. Organizations are urged to update systems and rotate credentials immediately.

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