Cisco Warns of New Firewall Attack Exploiting CVE-2025-20333 and CVE-2025-20362 Cisco on Wednesday disclosed that it became aware a new attack variant that's designed to target devices running Secure Adaptive Security Appliance (ASA) Software Threat Defense (FTD) releases are susceptible . "This can cause unpatched unexpectedly reload, leading denial-of-service (DoS) conditions," the company said in an updated advisory, urging customers apply updates as soon possible. Both vulnerabilities were late September 2025, but not before they exploited zero-day attacks delivering malware such RayInitiator LINE VIPER , according U.K. National Cyber Centre (NCSC). While successful exploitation allows attacker execute arbitrary code root using crafted HTTP requests, makes possible access restricted URL without authentica... https://thehackernews.com/2025/11/cisco-warns-of-new-firewall-attack.html