CVE-2026-57019 Junos OS: MX Series: Specific traffic causes an FPC to reset

An Improper Validation of Specified Quantity in Input vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS on MX Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service DoS. When a specific packet is received from device in the same broadcast...

CVE-2026-57019

CVE-2026-57019 affects Junos OS on MX Series. An issue in the Packet Forwarding Engine (pfe) due to improper validation of a specified quantity in input can allow an unauthenticated adjacent attacker to cause a Denial-of-Service by triggering an FPC major error and a reset, impacting traffic unti...