CVE-2026-57019

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-2026-57020

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service DoS. On all QFX10000 platforms in an EVPN-VxLAN scenario, if an...

CVE-2026-57030 Junos OS: SRX Series: Flow sessions are not getting cleared leading to a DoS

A Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. As part of the stateful...

CVE-2026-57022

CVE-2026-57022 affects Junos OS on MX Series with SPC3, SRX Series (including vSRX). The vulnerability stems from an improper check for unusual or exceptional conditions in the Packet Forwarding Engine (PFE). A unauthenticated, network-based attacker can trigger a PFE crash by a TCP connection to...

CVE-2026-57022 Junos OS: MX Series with SPC3, SRX Series: Specific packet in response to a TCP connection establishment by the affected device can crash the PFE

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. When an affected device initiates a TCP...

CVE-2026-57022

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. When an affected device initiates a TCP...

CVE-2026-57020

CVE-2026-57020 affects Junos OS on Juniper’s QFX10000 Series. The issue arises in the packet forwarding engine (pfe) where an unauthenticated, adjacent attacker can trigger a DoS by sending IPv6 multicast traffic in an EVPN-VxLAN setup; if these packets reach the spine’s non-IRB interface, they f...

CVE-2026-57019

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 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 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...

EUVD-2026-42701

An Unchecked Input for Loop Condition 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.Micro-BFD session flaps generate respective up/down events which are queued by PFEMAN for...

CVE-2026-33800 Junos OS: MX Series: In a VC scenario a high rate of micro-BFD session flaps will cause an FPC crash

An Unchecked Input for Loop Condition 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.Micro-BFD session flaps generate respective up/down events which are queued by PFEMAN for...

CVE-2026-33800 Junos OS: MX Series: In a VC scenario a high rate of micro-BFD session flaps will cause an FPC crash

An Unchecked Input for Loop Condition 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.Micro-BFD session flaps generate respective up/down events which are queued by PFEMAN for...

CVE-2026-33800

CVE-2026-33800 affects Junos OS on MX Series (MX FPCs up to MPC9). The issue is caused by an unchecked input for a loop condition in PFEMAN, where high-rate Micro-BFD session flaps queue events and a VC with locality-bias amplifies processing time, causing PFEMAN to miss processing and the PFEMAN...

CVE-2026-57022: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. When an affected device initiates a TCP...

CVE-2026-57030: Concurrent Execution using Shared Resource with Improper Synchronization

A Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service DoS. As part of the stateful...

CVE-2026-57031: Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS on MX Series allows adjacent subscribers to bypass configured firewall filters. On MX Series devices with MPC10/11, LC4800/9600, and MX304 with subscribers...

CVE-2026-57027: Missing Release of Memory after Effective Lifetime

A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service DoS.When sFlow is configured in a Virtual Chassis VC scenario...

CVE-2026-33800: Unchecked Input for Loop Condition

An Unchecked Input for Loop Condition 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.Micro-BFD session flaps generate respective up/down events which are queued by PFEMAN for...

PT-2026-56981

Name of the Vulnerable Software and Affected Versions Junos OS EX4100 Series versions prior to 23.2R2-S7 Junos OS EX4400 Series versions prior to 23.2R2-S7 Junos OS EX4100 Series versions 23.4 through 23.4R2-S7 Junos OS EX4400 Series versions 23.4 through 23.4R2-S7 Junos OS EX4100 Series versions...