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...

PT-2026-56986

Name of the Vulnerable Software and Affected Versions Junos OS on EX2300, EX3400, EX4000, EX4100 and EX4400 versions prior to 23.2R2-S7 Junos OS on EX2300, EX3400, EX4000, EX4100 and EX4400 versions 23.4 prior to 23.4R2-S8 Junos OS on EX2300, EX3400, EX4000, EX4100 and EX4400 versions 24.2 prior ...

PT-2026-56973

Name of the Vulnerable Software and Affected Versions Junos OS on MX Series versions prior to 23.2R2-S6 Junos OS on MX Series versions 23.4 through 23.4R2-S7 Junos OS on MX Series versions 24.2 through 24.2R2-S4 Junos OS on MX Series versions 24.4 through 24.4R2-S4 Junos OS on MX Series versions...

CVE-2026-57032: Improper Handling of Undefined Parameters

An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service DoS. If an attempt is made to subscribe to an unsupported telemetry...

PT-2026-56928

Name of the Vulnerable Software and Affected Versions Junos OS on MX Series versions prior to 23.2R2-S7 Junos OS on MX Series versions 23.4 through 23.4R2-S7 Junos OS on MX Series versions 24.2 through 24.2R2-S3 Junos OS on MX Series versions 24.4 through 24.4R2-S2 Junos OS on MX Series versions...

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...

CVE-2026-57020: 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 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-2026-33800: 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...

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-2026-57019: Improper Validation of Specified Quantity in Input

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-2026-57027: 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...

PT-2026-56976

Name of the Vulnerable Software and Affected Versions Junos OS on MX Series with SPC3 versions prior to 23.2R2-S4 Junos OS on SRX5k Series with SPC3 versions prior to 23.2R2-S4 Junos OS on SRX1600 Series versions prior to 23.2R2-S4 Junos OS on SRX2300 Series versions prior to 23.2R2-S4 Junos OS o...

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...

Juniper Junos OS Vulnerability (JSA110079)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA110079 advisory. - 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 unauthenticate...

Juniper Junos OS Vulnerability (JSA110090)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA110090 advisory. - A Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in the packet forwarding engine PFE of Juniper Networks Junos OS...

Juniper Junos OS Vulnerability (JSA110092)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA110092 advisory. - An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on EX Series devices allows an authenticated...

Juniper Junos OS Vulnerability (JSA79188)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA79188 advisory. - A Missing Authentication for Critical Function vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows...

Juniper Junos OS Vulnerability (JSA75734)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA75734 advisory. - An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS allows a network-based,...

CVE-2026-33773

An Incorrect Initialization of Resource vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX Series and QFX Series device allows an unauthenticated, network-based attacker to cause an integrity impact to downstream networks. When the same family inet or...

EUVD-2026-21199

An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine pfe of Juniper Networks Junos OS on specific EX and QFX Series devices allow an unauthenticated, adjacent attacker to cause a complete Denial of Service DoS. On EX4k, and QFX5k platforms configur...