Juniper Junos vulnerabilities

CVE-2019-0070 [HIGH] CWE-20 CVE-2019-0070: An Improper Input Validation weakness allows a malicious local attacker to elevate their permissions An Improper Input Validation weakness allows a malicious local attacker to elevate their permissions to take control of other portions of the NFX platform they should not be able to access, and execute commands outside their authorized scope of control. This leads to the attacker being able to take control of the entire system. This issue affects: Junipe

CVE-2019-0041 [HIGH] CWE-284 CVE-2019-0041: On EX4300-MP Series devices with any lo0 filters applied, transit network traffic may reach the cont On EX4300-MP Series devices with any lo0 filters applied, transit network traffic may reach the control plane via loopback interface (lo0). The device may fail to forward such traffic. This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R1-S2, 18.2R2 on EX4300-MP Series. This issue does not affect any other EX series devices.

CVE-2017-2341 [HIGH] CWE-287 CVE-2017-2341: An insufficient authentication vulnerability on platforms where Junos OS instances are run in a virt An insufficient authentication vulnerability on platforms where Junos OS instances are run in a virtualized environment, may allow unprivileged users on the Junos OS instance to gain access to the host operating environment, and thus escalate privileges. Affected releases are Juniper Networks Junos OS 14.1X53 prior to 14.1X53-D40 on QFX5110, QFX5200, QF

CVE-2020-1645 [HIGH] CWE-362 CVE-2020-1645: When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process, responsible for managing "URL Filtering service", may crash, causing the Services PIC to restart. While the Services PIC is resta

CVE-2021-0218 [HIGH] CWE-78 CVE-2021-0218: A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may allow a locally authenticated attacker with low privileges to execute commands with root privilege. license-check is a daemon used to manage licenses in Junos OS. To update licenses, a user executes the command 'request system license update' via the CLI. A

CVE-2022-22188 [HIGH] CWE-122 CVE-2022-22188: An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packe An Uncontrolled Memory Allocation vulnerability leading to a Heap-based Buffer Overflow in the packet forwarding engine (PFE) of Juniper Networks Junos OS allows a network-based unauthenticated attacker to flood the device with traffic leading to a Denial of Service (DoS). The device must be configured with storm control profiling limiting the number

CVE-2023-44194 [HIGH] CWE-276 CVE-2023-44194: An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticat An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root p

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

CVE-2024-30382 [HIGH] CWE-755 CVE-2024-30382: An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to send a specific routing update, causing an rpd core due to memory corruption, leading to a Denial of Service (DoS). This issue can only be triggered whe

CVE-2024-47499 [HIGH] CWE-754 CVE-2024-47499: 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). In a scenario where BGP Monitoring Protocol (BMP) is configured with rib-in pre-policy monitoring, receiving

CVE-2024-47504 [HIGH] CWE-1287 CVE-2024-47504: An Improper Validation of Specified Type of Input vulnerability in the packet forwarding engine (pfe An Improper Validation of Specified Type of Input vulnerability in the packet forwarding engine (pfe) Juniper Networks Junos OS on SRX5000 Series allows an unauthenticated, network based attacker to cause a Denial of Service (Dos). When a non-clustered SRX5000 device receives a specifically malformed packet this will cause a flowd crash and restart.

CVE-2024-30398 [HIGH] CWE-119 CVE-2024-30398: An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Pack An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet han

CVE-2024-21606 [HIGH] CWE-415 CVE-2024-21606: A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on S A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). In a remote access VPN scenario, if a "tcp-encap-profile" is configured and a sequence of specific packets is received, a flowd crash and restart will be obser

CVE-2024-21595 [HIGH] CWE-1286 CVE-2024-21595: An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Eng An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If an attacker sends high rate of specific ICMP traffic to a device with VXLAN configured, this causes a deadlock of the PFE and

CVE-2023-44191 [HIGH] CWE-770 CVE-2023-44191: An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dr

CVE-2024-39545 [HIGH] CWE-754 CVE-2024-39545: An Improper Check for Unusual or Exceptional Conditions vulnerability in the the IKE daemon (iked) o An Improper Check for Unusual or Exceptional Conditions vulnerability in the the IKE daemon (iked) of Juniper Networks Junos OS on SRX Series, MX Series with SPC3 and NFX350 allows allows an unauthenticated, network-based attacker sending specific mismatching parameters as part of the IPsec negotiation to trigger an iked crash leading to Denial of Ser

CVE-2024-39551 [HIGH] CWE-400 CVE-2024-39551: An Uncontrolled Resource Consumption vulnerability in the H.323 ALG (Application Layer Gateway) of An Uncontrolled Resource Consumption vulnerability in the H.323 ALG (Application Layer Gateway) of Juniper Networks Junos OS on SRX Series and MX Series with SPC3 and MS-MPC/MIC, allows an unauthenticated network-based attacker to send specific packets causing traffic loss leading to Denial of Service (DoS). Continued receipt and processing of these sp

CVE-2024-39516 [HIGH] CWE-125 CVE-2024-39516: An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Jun An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a su

CVE-2025-30651 [HIGH] CWE-805 CVE-2025-30651: A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Ju A Buffer Access with Incorrect Length Value 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 attacker sends a specific ICMPv6 packet to an interface with "protocols router-advertisement" configured, rpd cras

CVE-2025-30656 [HIGH] CWE-167 CVE-2025-30656: An Improper Handling of Additional Special Element vulnerability in the Packet Forwarding Engine (PF An Improper Handling of Additional Special Element vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with MS-MPC, MS-MIC and SPC3, and SRX Series, allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). If the SIP ALG processes specifically formatted SIP invites, a memory corru