Juniper Junos OS Evolved vulnerabilities

CVE-2026-21902 [CRITICAL] CWE-732 CVE-2026-21902: An Incorrect Permission Assignment for Critical Resource vulnerability in the On-Box Anomaly detecti An Incorrect Permission Assignment for Critical Resource vulnerability in the On-Box Anomaly detection framework of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated, network-based attacker to execute code as root. The On-Box Anomaly detection framework should only be reachable by other internal processes over the internal

CVE-2021-0211 [CRITICAL] CWE-754 CVE-2021-0211: An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Ev An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Den

CVE-2023-28983 [HIGH] CWE-78 CVE-2023-28983: An OS Command Injection vulnerability in gRPC Network Operations Interface (gNOI) server module of J An OS Command Injection vulnerability in gRPC Network Operations Interface (gNOI) server module of Juniper Networks Junos OS Evolved allows an authenticated, low privileged, network based attacker to inject shell commands and execute code. This issue affects Juniper Networks Junos OS Evolved 21.4 version 21.4R1-EVO and later versions prior to 22.1R1-EV

CVE-2023-44182 [HIGH] CWE-252 CVE-2023-44182: An Unchecked Return Value vulnerability in the user interfaces to the Juniper Networks Junos OS and An Unchecked Return Value vulnerability in the user interfaces to the Juniper Networks Junos OS and Junos OS Evolved, the CLI, the XML API, the XML Management Protocol, the NETCONF Management Protocol, the gNMI interfaces, and the J-Web User Interfaces causes unintended effects such as demotion or elevation of privileges associated with an operators ac

CVE-2021-31350 [HIGH] CWE-269 CVE-2021-31350: An Improper Privilege Management vulnerability in the gRPC framework, used by the Juniper Extension An Improper Privilege Management vulnerability in the gRPC framework, used by the Juniper Extension Toolkit (JET) API on Juniper Networks Junos OS and Junos OS Evolved, allows a network-based, low-privileged authenticated attacker to perform operations as root, leading to complete compromise of the targeted system. The issue is caused by the JET servic

CVE-2023-4481 [HIGH] CWE-20 CVE-2023-4481: An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When certain specific crafted BGP UPDATE messages are received over an established BGP session, one BGP session may be torn down with an UPD

CVE-2026-57028 [HIGH] CWE-923 CVE-2026-57028: An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Netw An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause license exhaustion. Due to an incorrect initialization, a process which should only be able to communicate internally within the device, can be reached over the network v

CVE-2024-47490 [HIGH] CWE-923 CVE-2024-47490: An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the Packet F An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, network based attacker to cause increased consumption of resources, ultimately resulting in a Denial of Service (DoS). When specific transit MPLS

CVE-2021-31354 [HIGH] CWE-125 CVE-2021-31354: An Out Of Bounds (OOB) access vulnerability in the handling of responses by a Juniper Agile License An Out Of Bounds (OOB) access vulnerability in the handling of responses by a Juniper Agile License (JAL) Client in Juniper Networks Junos OS and Junos OS Evolved, configured in Network Mode (to use Juniper Agile License Manager) may allow an attacker to cause a partial Denial of Service (DoS), or lead to remote code execution (RCE). The vulnerability

CVE-2021-0208 [HIGH] CWE-20 CVE-2021-0208: An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper N An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the De

CVE-2022-22239 [HIGH] CWE-250 CVE-2022-22239: An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Network An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Networks Junos OS Evolved allows a locally authenticated attacker with low privileges to escalate their privileges on the device and potentially remote systems. This vulnerability allows a locally authenticated attacker with access to the ssh operational comma

CVE-2024-39542 [HIGH] CWE-1286 CVE-2024-39542: An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engi An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with MPC10/11 or LC9600, MX304, and Junos OS Evolved on ACX Series and PTX Series allows an unauthenticated, network based attacker to cause a Denial-of-Service (DoS). This issue can occur in two scen

CVE-2025-60003 [HIGH] CWE-126 CVE-2025-60003: A Buffer Over-read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS a A Buffer Over-read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). When an affected device receives a BGP update with a set of specific optional transitive attributes over an established peering session, rpd will

CVE-2021-31358 [HIGH] CWE-77 CVE-2021-31358: A command injection vulnerability in sftp command processing on Juniper Networks Junos OS Evolved al A command injection vulnerability in sftp command processing on Juniper Networks Junos OS Evolved allows an attacker with authenticated CLI access to be able to bypass configured access protections to execute arbitrary shell commands within the context of the current user. The vulnerability allows an attacker to bypass command authorization restriction

CVE-2025-52954 [HIGH] CWE-862 CVE-2025-52954: A Missing Authorization vulnerability in the internal virtual routing and forwarding (VRF) of Junipe A Missing Authorization vulnerability in the internal virtual routing and forwarding (VRF) of Juniper Networks Junos OS Evolved allows a local, low-privileged user to gain root privileges, leading to a system compromise. Any low-privileged user with the capability to send packets over the internal VRF can execute arbitrary Junos commands and modify t

CVE-2024-30394 [HIGH] CWE-121 CVE-2024-30394: A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when EVPN is configured, and a specific EVPN type-5 route is received vi

CVE-2025-60004 [HIGH] CWE-754 CVE-2025-60004: An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial-Of-Service (DoS). When an affected system receives a specific BGP EVPN update message over an established BGP session, this cau

CVE-2021-31356 [HIGH] CWE-77 CVE-2021-31356: A command injection vulnerability in command processing on Juniper Networks Junos OS Evolved allows A command injection vulnerability in command processing on Juniper Networks Junos OS Evolved allows an attacker with authenticated CLI access to be able to bypass configured access protections to execute arbitrary shell commands within the context of the current user. The vulnerability allows an attacker to bypass command authorization restrictions assi

CVE-2021-31357 [HIGH] CWE-77 CVE-2021-31357: A command injection vulnerability in tcpdump command processing on Juniper Networks Junos OS Evolved A command injection vulnerability in tcpdump command processing on Juniper Networks Junos OS Evolved allows an attacker with authenticated CLI access to be able to bypass configured access protections to execute arbitrary shell commands within the context of the current user. The vulnerability allows an attacker to bypass command authorization restrict

CVE-2026-33793 [HIGH] CWE-250 CVE-2026-33793: An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Network An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system. When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute mali