Juniper Networks Junos Os vulnerabilities

CVE-2017-2344 [HIGH] CWE-119 CVE-2017-2344: A routine within an internal Junos OS sockets library is vulnerable to a buffer overflow. Malicious A routine within an internal Junos OS sockets library is vulnerable to a buffer overflow. Malicious exploitation of this issue may lead to a denial of service (kernel panic) or be leveraged as a privilege escalation through local code execution. The routines are only accessible via programs running on the device itself, and veriexec restricts arbitrary p

CVE-2019-0028 [HIGH] CWE-404 CVE-2019-0028: On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mecha On Junos devices with the BGP graceful restart helper mode enabled or the BGP graceful restart mechanism enabled, a BGP session restart on a remote peer that has the graceful restart mechanism enabled may cause the local routing protocol daemon (RPD) process to crash and restart. By simulating a specific BGP session restart, an attacker can repeatedly c

CVE-2019-0058 [HIGH] CVE-2019-0058: A vulnerability in the Veriexec subsystem of Juniper Networks Junos OS allowing an attacker to fully A vulnerability in the Veriexec subsystem of Juniper Networks Junos OS allowing an attacker to fully compromise the host system. A local authenticated user can elevate privileges to gain full control of the system even if they are specifically denied access to perform certain actions. This issue affects: Juniper Networks Junos OS: 12.3X48 versions prior to 12.3

CVE-2020-1639 [HIGH] CWE-703 CVE-2020-1639: When an attacker sends a specific crafted Ethernet Operation, Administration, and Maintenance (Ether When an attacker sends a specific crafted Ethernet Operation, Administration, and Maintenance (Ethernet OAM) packet to a target device, it may improperly handle the incoming malformed data and fail to sanitize this incoming data resulting in an overflow condition. This overflow condition in Juniper Networks Junos OS allows an attacker to cause a Denial

CVE-2020-1649 [HIGH] CVE-2020-1649: When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and th When a device running Juniper Networks Junos OS with MPC7, MPC8, or MPC9 line cards installed and the system is configured for inline IP reassembly, used by L2TP, MAP-E, GRE, and IPIP, the packet forwarding engine (PFE) will become disabled upon receipt of small fragments requiring reassembly, generating the following error messages: [LOG: Err] MQSS(2): WO: Pac

CVE-2020-1601 [HIGH] CVE-2020-1601: Certain types of malformed Path Computation Element Protocol (PCEP) packets when received and proces Certain types of malformed Path Computation Element Protocol (PCEP) packets when received and processed by a Juniper Networks Junos OS device serving as a Path Computation Client (PCC) in a PCEP environment using Juniper's path computational element protocol daemon (pccd) process allows an attacker to cause the pccd process to crash and generate a core file the

CVE-2019-0051 [HIGH] CWE-755 CVE-2019-0051: SSL-Proxy feature on SRX devices fails to handle a hardware resource limitation which can be exploit SSL-Proxy feature on SRX devices fails to handle a hardware resource limitation which can be exploited by remote SSL/TLS servers to crash the flowd daemon. Repeated crashes of the flowd daemon can result in an extended denial of service condition. For this issue to occur, clients protected by the SRX device must initiate a connection to the malicious se

CVE-2022-22162 [HIGH] CWE-209 CVE-2022-22162: A Generation of Error Message Containing Sensitive Information vulnerability in the CLI of Juniper N A Generation of Error Message Containing Sensitive Information vulnerability in the CLI of Juniper Networks Junos OS allows a locally authenticated attacker with low privileges to elevate these to the level of any other user logged in via J-Web at this time, potential leading to a full compromise of the device. This issue affects Juniper Networks Juno

CVE-2021-0245 [HIGH] CWE-798 CVE-2021-0245: A Use of Hard-coded Credentials vulnerability in Juniper Networks Junos OS on Junos Fusion satellite A Use of Hard-coded Credentials vulnerability in Juniper Networks Junos OS on Junos Fusion satellite devices allows an attacker who is local to the device to elevate their privileges and take control of the device. This issue affects: Juniper Networks Junos OS Junos Fusion Satellite Devices. 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R

CVE-2021-0233 [HIGH] CWE-400 CVE-2021-0233: A vulnerability in Juniper Networks Junos OS ACX500 Series, ACX4000 Series, may allow an attacker to A vulnerability in Juniper Networks Junos OS ACX500 Series, ACX4000 Series, may allow an attacker to cause a Denial of Service (DoS) by sending a high rate of specific packets to the device, resulting in a Forwarding Engine Board (FFEB) crash. Continued receipt of these packets will sustain the Denial of Service (DoS) condition. This issue affects Junip

CVE-2021-0282 [HIGH] CWE-754 CVE-2021-0282: On Juniper Networks Junos OS devices with Multipath or add-path feature enabled, processing a specif On Juniper Networks Junos OS devices with Multipath or add-path feature enabled, processing a specific BGP UPDATE can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this UPDATE message will create a sustained Denial of Service (DoS) condition. This BGP UPDATE message can p

CVE-2019-0071 [HIGH] CWE-347 CVE-2019-0071: Veriexec is a kernel-based file integrity subsystem in Junos OS that ensures only authorized binarie Veriexec is a kernel-based file integrity subsystem in Junos OS that ensures only authorized binaries are able to be executed. Due to a flaw in specific versions of Junos OS, affecting specific EX Series platforms, the Veriexec subsystem will fail to initialize, in essence disabling file integrity checking. This may allow a locally authenticated user wi

CVE-2026-33797 [HIGH] CWE-20 CVE-2026-33797: An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker, sending a specific genuine BGP packet in an already established BGP session to reset only that session causing a Denial of Service (DoS). An attacker repeatedly sending the packet will sustain the Denial of Service

CVE-2026-21903 [MEDIUM] CWE-121 CVE-2026-21903: A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine (pfe) of Juniper Network A Stack-based Buffer Overflow vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a network-based attacker, authenticated with low privileges to cause a Denial-of-Service (DoS). Subscribing to telemetry sensors at scale causes all FPC connections to drop, resulting in an FPC crash and restart. The issue was not

CVE-2026-33779 [MEDIUM] CWE-296 CVE-2026-33779: An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks J An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks Junos OS on SRX Series allows a PITM to intercept the communication of the device and get access to confidential information and potentially modify it. When an SRX device is provisioned to connect to Security Director (SD) cloud, it doesn't perform su

CVE-2017-2342 [HIGH] CWE-392 CVE-2017-2342: MACsec feature on Juniper Networks Junos OS 15.1X49 prior to 15.1X49-D100 on SRX300 series does not MACsec feature on Juniper Networks Junos OS 15.1X49 prior to 15.1X49-D100 on SRX300 series does not report errors when a secure link can not be established. It falls back to an unencrypted link. This can happen when MACsec is configured on ports that are not capable of MACsec or when a secure link can not be established. This can mislead customers into b

CVE-2017-10619 [HIGH] CVE-2017-10619: When Express Path (formerly known as service offloading) is configured on Juniper Networks SRX1400, When Express Path (formerly known as service offloading) is configured on Juniper Networks SRX1400, SRX3400, SRX3600, SRX5400, SRX5600, SRX5800 in high availability cluster configuration mode, certain multicast packets might cause the flowd process to crash, halting or interrupting traffic from flowing through the device and triggering RG1+ (data-plane) fail-o

CVE-2019-0050 [HIGH] CVE-2019-0050: Under certain heavy traffic conditions srxpfe process can crash and result in a denial of service co Under certain heavy traffic conditions srxpfe process can crash and result in a denial of service condition for the SRX1500 device. Repeated crashes of the srxpfe can result in an extended denial of service condition. The SRX device may fail to forward traffic when this condition occurs. Affected releases are Juniper Networks Junos OS: 15.1X49 versions prior to

CVE-2019-0057 [HIGH] CVE-2019-0057: An improper authorization weakness in Juniper Networks Junos OS allows a local authenticated attacke An improper authorization weakness in Juniper Networks Junos OS allows a local authenticated attacker to bypass regular security controls to access the Junos Device Manager (JDM) application and take control of the system. This issue affects: Juniper Networks Junos OS versions prior to 18.2R1, 18.2X75-D5.

CVE-2019-0061 [HIGH] CWE-657 CVE-2019-0061: The management daemon (MGD) is responsible for all configuration and management operations in Junos The management daemon (MGD) is responsible for all configuration and management operations in Junos OS. The Junos CLI communicates with MGD over an internal unix-domain socket and is granted special permission to open this protected mode socket. Due to a misconfiguration of the internal socket, a local, authenticated user may be able to exploit this vuln