Too many Cisco ASA firewalls still unsecure despite zero-day attack alerts

Despite Cisco and various cybersecurity agencies warning about attackers actively exploting zero-day vulnerabilities (CVE-2025-20333 and CVE-2025-20362) in Cisco Adaptive Security Appliances (ASA) for months, there are still around 48,000 vulnerable appliances out there. The number is provided by the Shadowser Foundation, which is scanning for internet-facing vulnerable Cisco ASA/FTD instances every day. A majority of those are located in the US, and the rest mostly in the UK, Japan, Russia, Germany, and Canada. Surge in … More → The post Too many Cisco ASA firewalls still unsecure despite zero-day attack alerts appeared first on Help Net Security.
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