CVE-2025-21594 Junos OS: MX Series: In DS-lite and NAT scenario receipt of crafted IPv6 traffic causes port block

An Improper Check for Unusual or Exceptional Conditions vulnerability in the pfe packet forwarding engine of Juniper Networks Junos OS on MX Series causes a port within a pool to be blocked leading to Denial of Service DoS. In a DS-Lite Dual-Stack Lite and NAT Network Address Translation scenario...

CVE-2025-21594 Junos OS: MX Series: In DS-lite and NAT scenario receipt of crafted IPv6 traffic causes port block

An Improper Check for Unusual or Exceptional Conditions vulnerability in the pfe packet forwarding engine of Juniper Networks Junos OS on MX Series causes a port within a pool to be blocked leading to Denial of Service DoS. In a DS-Lite Dual-Stack Lite and NAT Network Address Translation scenario...

CVE-2025-21594

Summary (CVE-2025-21594) : Affects Juniper Networks Junos OS on MX Series. The issue is an improper check in the packet forwarding engine (pfe) that can block a port pool when processing crafted IPv6 traffic in a DS-Lite/NAT scenario, causing Denial of Service. In the affected scenarios, ports as...

PT-2025-15867 · Juniper Networks · Junos

Name of the Vulnerable Software and Affected Versions: Junos OS versions prior to 21.2R3-S9 Junos OS versions 21.4 prior to 21.4R3-S8 Junos OS versions 22.2 prior to 22.2R3-S4 Junos OS versions 22.4 prior to 22.4R3-S5 Junos OS versions 23.2 prior to 23.2R2-S2 Junos OS versions 23.4 prior to 23.4R...

The vulnerability of the Application Layer Gateway module in Juniper Networks’ Junos OS network devices of the SRX and MX series allows a attacker to cause service interruptions.

The vulnerability of the Application Layer Gateway module in Juniper Networks’ Junos OS network devices of the SRX and MX series involves an uncontrolled consumption of resources. Exploiting this vulnerability can allow a malicious actor to cause service interruptions...

The vulnerability of the Packet Forwarding Engine (PFE) module in Juniper Networks’ Junos OS routers of the MX Series and Junos OS routers of the PTX Series and ACX Series allows a attacker to cause service interruptions.

The vulnerability of the Packet Forwarding Engine PFE module in Juniper Networks’ Junos OS routers of the MX Series and Junos OS Evolved routers of the PTX Series and ACX Series is related to improper syntax validation during input verification. Exploiting this vulnerability can allow an attacker...

CVE-2024-47497

An Uncontrolled Resource Consumption vulnerability in the http daemon httpd of Juniper Networks Junos OS on SRX Series, QFX Series, MX Series and EX Series allows an unauthenticated, network-based attacker to cause Denial-of-Service DoS. An attacker can send specific HTTPS connection requests to...

CVE-2024-47496

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service DoS. When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the...

CVE-2024-47496

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service DoS. When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the...

CVE-2024-47497

An Uncontrolled Resource Consumption vulnerability in the http daemon httpd of Juniper Networks Junos OS on SRX Series, QFX Series, MX Series and EX Series allows an unauthenticated, network-based attacker to cause Denial-of-Service DoS. An attacker can send specific HTTPS connection requests to...

CVE-2024-47493

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine PFE of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service DoS. In case of channelized Modular...

CVE-2024-39526

An Improper Handling of Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS on MX Series with MPC10/MPC11/LC9600 line cards, EX9200 with EX9200-15C lines cards, MX304 devices, and Juniper Networks Junos OS Evolved on PTX Series, allows an attacker sending...

CVE-2024-39526

An Improper Handling of Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS on MX Series with MPC10/MPC11/LC9600 line cards, EX9200 with EX9200-15C lines cards, MX304 devices, and Juniper Networks Junos OS Evolved on PTX Series, allows an attacker sending...

CVE-2024-47497

CVE-2024-47497 affects Juniper Junos OS on SRX, QFX, MX and EX Series. The vulnerability is an Uncontrolled Resource Consumption in the httpd process when handling certain HTTPS requests, causing unauthenticated, network-based DoS via resource exhaustion and device restart. Affected versions incl...

CVE-2024-47497 Junos OS: SRX Series, QFX Series, MX Series and EX Series: Receiving specific HTTPS traffic causes resource exhaustion

An Uncontrolled Resource Consumption vulnerability in the http daemon httpd of Juniper Networks Junos OS on SRX Series, QFX Series, MX Series and EX Series allows an unauthenticated, network-based attacker to cause Denial-of-Service DoS. An attacker can send specific HTTPS connection requests to...

CVE-2024-47497 Junos OS: SRX Series, QFX Series, MX Series and EX Series: Receiving specific HTTPS traffic causes resource exhaustion

An Uncontrolled Resource Consumption vulnerability in the http daemon httpd of Juniper Networks Junos OS on SRX Series, QFX Series, MX Series and EX Series allows an unauthenticated, network-based attacker to cause Denial-of-Service DoS. An attacker can send specific HTTPS connection requests to...

CVE-2024-47496

CVE-2024-47496 affects Juniper Networks Junos OS on MX Series devices with MPC1–MPC9 line cards. A NULL pointer dereference in the Packet Forwarding Engine (pfe) can crash pfe when a specific command is run, causing traffic forwarding interruption and a sustained DoS until self-recovery. Affected...

CVE-2024-47496 Junos OS: MX Series: The PFE will crash on running specific command

A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine pfe of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service DoS. When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the...

CVE-2024-47493

CVE-2024-47493 affects Junos OS on MX Series with Trio-based FPCs. The vulnerability is a Missing Release of Memory after Effective Lifetime in the PFE, causing a heap memory leak during channelized MIC interface flap activity and potentially leading to DoS for unauthenticated adjacent attackers....

CVE-2024-47493 Junos OS: MX Series: Trio-based FPCs: Continuous physical Interface flaps causes local FPC to crash

A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine PFE of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service DoS. In case of channelized Modular...