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Firewall Security

Network operations center analyst monitoring a Cisco firewall management console for zero-day vulnerabilities.

Cisco FMC Zero-Day CVE-2026-20316: What Hosting Teams Should Know About Active Exploitation

CISA has added a Cisco Secure FMC zero-day to its KEV catalog after reports of active exploitation. Here is what hosting teams and network operators should know about CVE-2026-20316.

Editorial illustration of a network firewall protecting internal servers from an external attacker attempting to exploit an

Qilin Ransomware Group Exploits PAN-OS Authentication Bypass for Initial Access

A high-severity PAN-OS authentication bypass flaw was weaponized by Qilin ransomware operators in June 2026, enabling initial access to enterprise environments through vulnerable Palo Alto Networks firewalls.