CVE-2026-21910

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on EX4k Series and QFX5k Series platforms allows an unauthenticated network-adjacent attacker flapping an interface to cause traffic between VXLAN Network...

CVE-2026-21918

A Double Free vulnerability in the flow processing daemon flowd of Juniper Networks Junos OS on SRX and MX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. On all SRX and MX Series platforms, when during TCP session establishment a specific sequence of...

CVE-2026-21914 Junos OS: SRX Series: A specifically malformed GTP message will cause an FPC crash

An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service Dos. If an SRX Series device receives a specifically malformed GPRS Tunnelling Protocol GTP Modify Bearer Request message, ...

CVE-2026-0203

CVE-2026-0203 affecting Juniper Networks Junos OS —An Improper Handling of Exceptional Conditions vulnerability in packet processing can be exploited by an unauthenticated, network-adjacent attacker sending a specifically malformed ICMP (IPv4) packet. This causes the Flexible Packet Processor (FP...

PT-2026-3124

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on EX4k Series and QFX5k Series platforms allows an unauthenticated network-adjacent attacker flapping an interface to cause traffic between VXLAN Network...

EUVD-2025-33401

An Uncontrolled Resource Consumption vulnerability in the Connectivity Fault Management CFM daemon and the Connectivity Fault Management Manager cfmman of Juniper Networks Junos OS Evolved on PTX10001-36MR, PTX10002-36QDD, PTX10004, PTX10008, PTX10016 allows an unauthenticated, adjacent attacker ...

CVE-2022-22202

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...

CVE-2022-22202

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...

Design/Logic Flaw

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...

CVE-2022-22202

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...

Race condition

The FPC Flexible PIC Concentrator of Juniper Networks Junos OS and Junos OS Evolved may restart after processing a specific IPv4 packet. Only packets destined to the device itself, successfully reaching the RE through existing edge and control plane filtering, will be able to cause the FPC restar...

CVE-2020-1638 Junos OS & Junos OS Evolved: A specific IPv4 packet can lead to FPC restart.

The FPC Flexible PIC Concentrator of Juniper Networks Junos OS and Junos OS Evolved may restart after processing a specific IPv4 packet. Only packets destined to the device itself, successfully reaching the RE through existing edge and control plane filtering, will be able to cause the FPC restar...