Cisco firewall zero-days: CISA says patch & retire EOS hardware
CISA warned that multiple federal agencies still haven’t fully patched Cisco ASA/FTD devices despite active exploitation. Because the campaign targets the VPN web server and enables device takeover, teams must apply fixes for CVE-2025-20333/20362, follow ED 25-03 inventory and validation steps, and disconnect end-of-support hardware. This analysis explains impact, attack flow, high-signal detection, and fast remediation so defenders can reduce edge-device risk without slowing operations.