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CVSS: 6.5EPSS: 0%CPEs: 156EXPL: 1

An Improper Handling of Exceptional Conditions vulnerability on specific PTX Series devices, including the PTX1000, PTX3000 (NextGen), PTX5000, PTX10002-60C, PTX10008, and PTX10016 Series, in Juniper Networks Junos OS allows an unauthenticated MPLS-based attacker to cause a Denial of Service (DoS) by triggering the dcpfe process to crash and FPC to restart. On affected PTX Series devices, processing specific MPLS packets received on an interface with multiple units configured may cause FPC to restart unexpectedly. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects PTX Series devices utilizing specific FPCs found on PTX1000, PTX3000 (NextGen), PTX5000, PTX10002-60C, PTX10008, and PTX10016 Series devices, only if multiple units are configured on the ingress interface, and at least one unit has 'family mpls' *not* configured. See the configuration sample below for more information. • https://kb.juniper.net/JSA69706 • CWE-755: Improper Handling of Exceptional Conditions •

CVSS: 7.5EPSS: 0%CPEs: 156EXPL: 0

An Operation on a Resource after Expiration or Release vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker with an established BGP session to cause a Denial of Service (DoS). This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening. This issue affects: Juniper Networks Junos OS All versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S8, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO. Una vulnerabilidad de Operación en un Recurso después de su Caducidad o Liberación en el Demonio de Protocolo de Enrutamiento (RPD) de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante no autenticado basado en la red con una sesión BGP establecida causar una Denegación de Servicio (DoS). • https://kb.juniper.net/JSA69511 • CWE-672: Operation on a Resource after Expiration or Release •

CVSS: 6.5EPSS: 0%CPEs: 209EXPL: 0

A Denial of Service (DoS) vulnerability in the processing of a flood of specific ARP traffic in Juniper Networks Junos OS on the EX4300 switch, sent from the local broadcast domain, may allow an unauthenticated network-adjacent attacker to trigger a PFEMAN watchdog timeout, causing the Packet Forwarding Engine (PFE) to crash and restart. After the restart, transit traffic will be temporarily interrupted until the PFE is reprogrammed. In a virtual chassis (VC), the impacted Flexible PIC Concentrator (FPC) may split from the VC temporarily, and join back into the VC once the PFE restarts. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on the EX4300: All versions prior to 15.1R7-S12; 18.4 versions prior to 18.4R2-S10, 18.4R3-S11; 19.1 versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R1-S9, 19.2R3-S4; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R2-S6, 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2-S1, 21.2R3; 21.3 versions prior to 21.3R1-S2, 21.3R2. • https://kb.juniper.net/JSA69502 • CWE-400: Uncontrolled Resource Consumption CWE-410: Insufficient Resource Pool •

CVSS: 7.2EPSS: 0%CPEs: 124EXPL: 0

Due to an Improper Initialization vulnerability in Juniper Networks Junos OS on EX4650 devices, packets received on the management interface (em0) but not destined to the device, may be improperly forwarded to an egress interface, instead of being discarded. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious. This issue affects: Juniper Networks Junos OS on EX4650 Series: All versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R3-S5; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2; 22.1 versions prior to 22.1R1. Debido a una vulnerabilidad de Inicialización Inapropiada en Juniper Networks Junos OS en dispositivos EX4650, los paquetes recibidos en la interfaz de administración (em0), pero que no están destinados al dispositivo, pueden reenviarse incorrectamente a una interfaz de salida, en lugar de descartarse. Este tráfico enviado por un cliente puede parecer genuino, pero no es de naturaleza estándar y debe considerarse como potencialmente malicioso. • https://kb.juniper.net/JSA69494 • CWE-665: Improper Initialization •

CVSS: 8.8EPSS: 0%CPEs: 213EXPL: 0

A Cross-site Scripting (XSS) vulnerability in Juniper Networks Junos OS J-Web allows an attacker to construct a URL that when visited by another user enables the attacker to execute commands with the target's permissions, including an administrator. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S10, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S6; 19.2 versions prior to 19.2R1-S8, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2; 21.2 versions prior to 21.2R1-S1, 21.2R2. Una vulnerabilidad de tipo Cross-site Scripting (XSS) en Juniper Networks Junos OS J-Web permite a un atacante construir una URL que, cuando es visitada por otro usuario, le permite ejecutar comandos con los permisos del objetivo, incluido un administrador. Este problema afecta a: Juniper Networks Junos OS 12.3 versiones anteriores a 12.3R12-S19; 15.1 versiones anteriores a 15.1R7-S10; 18.3 versiones anteriores a 18.3R3-S5; 18.4 versiones anteriores a 18.4R2-S10, 18.4R3-S9; 19.1 versiones anteriores a 19.1R2-S3, 19.1R3-S6; 19.2 versiones anteriores a 19.2R1-S8, 19.2R3-S3; 19.3 versiones anteriores a 19. 3R2-S6, 19.3R3-S3; 19.4 versiones anteriores a 19.4R3-S5; 20.1 versiones anteriores a 20.1R3-S2; 20.2 versiones anteriores a 20.2R3-S2; 20.3 versiones anteriores a 20.3R3; 20.4 versiones anteriores a 20.4R2-S2, 20.4R3; 21.1 versiones anteriores a 21.1R1-S1, 21.1R2; 21.2 versiones anteriores a 21.2R1-S1, 21.2R2 • https://kb.juniper.net/JSA69519 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •