Cisco Firepower 4100 Series Next-Generation Firewall等都是美国思科（Cisco）公司的产品。Cisco Firepower 4100 Series Next-Generation Firewall是一款4100系列防火墙产品。Multilayer Director Switches是一款网关设备。Firepower Extensible Operating System（FXOS）和NX-OS System Software都是使用在其中的系统。Firepower Extensible Operating System（FXOS）是一套防火墙专用系统。NX-OS System Software是一套面向数据中心的操作系统。 多款Cisco产品中的FXOS和NX-OS System Software的authentication, authorization, and accounting (AAA)的实现存在拒绝服务漏洞，该漏洞源于程序阻止NX-OS System Manager接受keepalive消息。远程攻击者可通过高频率的发送登录请求利用该漏洞造成拒绝服务（重新加载）。以下产品受到影响：Cisco Firepower 4100 Series Next-Generation Firewall；Firepower 9300 Security Appliance；Multilayer Director Switches；Nexus 1000V Series Switches；Nexus 1100 Series Cloud Services Platforms；Nexus 2000 Series Switches；Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 5000 Series Switches；Nexus 5500 Platform Switches；Nexus 5600 Platform Switches；Nexus 6000 Series Switches；Nexus 7000 Series Switches；Nexus 7700 Series Switches；Nexus 9000 Series Switches in...
Cisco Firepower 4100 Series Next-Generation Firewall等都是美国思科（Cisco）公司的产品。Cisco Firepower 4100 Series Next-Generation Firewall是一款4100系列防火墙产品。Multilayer Director Switches是一款网关设备。Firepower Extensible Operating System（FXOS）和NX-OS System Software都是使用在其中的系统。Firepower Extensible Operating System（FXOS）是一套防火墙专用系统。NX-OS System Software是一套面向数据中心的操作系统。 多款Cisco产品中的FXOS和NX-OS System Software的authentication, authorization, and accounting (AAA)的实现存在拒绝服务漏洞，该漏洞源于程序阻止NX-OS System Manager接受keepalive消息。远程攻击者可通过高频率的发送登录请求利用该漏洞造成拒绝服务（重新加载）。以下产品受到影响：Cisco Firepower 4100 Series Next-Generation Firewall；Firepower 9300 Security Appliance；Multilayer Director Switches；Nexus 1000V Series Switches；Nexus 1100 Series Cloud Services Platforms；Nexus 2000 Series Switches；Nexus 3000 Series Switches；Nexus 3500 Platform Switches；Nexus 5000 Series Switches；Nexus 5500 Platform Switches；Nexus 5600 Platform Switches；Nexus 6000 Series Switches；Nexus 7000 Series Switches；Nexus 7700 Series Switches；Nexus 9000 Series Switches in NX-OS mode；Nexus 9500 R-Series Line Cards and Fabric Modules；Unified Computing System (UCS) 6100 Series Fabric Interconnects；UCS 6200 Series Fabric Interconnects；UCS 6300 Series Fabric Interconnects。
