Juniper Junos vulnerabilities

CVE-2023-22394 [HIGH] CWE-911 CVE-2023-22394: An Improper Handling of Unexpected Data Type vulnerability in the handling of SIP calls in Juniper N An Improper Handling of Unexpected Data Type vulnerability in the handling of SIP calls in Juniper Networks Junos OS on SRX Series and MX Series platforms allows an attacker to cause a memory leak leading to Denial of Services (DoS). This issue occurs on all MX Series platforms with MS-MPC or MS-MIC card and all SRX Series platforms where SIP ALG is e

CVE-2023-22391 [HIGH] CWE-755 CVE-2023-22391: A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K Series devices allows an unauthenticated network-based attacker to cause a Denial of Service (DoS). Specific packets are being incorrectly routed to a queue used for other high-priority traffic such as BGP, PIM, ICMP, ICMPV6 ND and ISAKMP. Due to this

CVE-2022-22236 [HIGH] CWE-824 CVE-2022-22236: An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper N An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS

CVE-2022-22201 [HIGH] CWE-1285 CVE-2022-22201: An Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Packet An Improper Validation of Specified Index, Position, or Offset in Input 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). On SRX5000 Series with SPC3, SRX4000 Series, and vSRX, when PowerMode IPsec is configured and a malformed ESP packe

CVE-2022-22231 [HIGH] CWE-690 CVE-2022-22231: An Unchecked Return Value to NULL Pointer Dereference vulnerability in Packet Forwarding Engine (PFE An Unchecked Return Value to NULL Pointer Dereference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On SRX Series if Unified Threat Management (UTM) Enhanced Content Filtering (CF) and AntiVirus (AV) are enabled together and the system

CVE-2024-39552 [HIGH] CWE-755 CVE-2024-39552: 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 cause the RPD process to crash leading to a Denial of Service (DoS). When a malformed BGP UPDATE packet is received over an established BGP session, RPD

CVE-2022-22173 [HIGH] CWE-401 CVE-2022-22173: A Missing Release of Memory after Effective Lifetime vulnerability in the Public Key Infrastructure A Missing Release of Memory after Effective Lifetime vulnerability in the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS). In a scenario where Public Key Infrastructure (PKI) is used in combination with Certificate Revocation List (CRL), if the CRL fails

CVE-2024-21611 [HIGH] CWE-401 CVE-2024-21611: A Missing Release of Memory after Effective Lifetime vulnerability in the Routing Protocol Daemon ( A Missing Release of Memory after Effective Lifetime 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 Juniper Flow Monitoring (jflow) scenario route churn that causes BGP next hops to be updated will cause a sl

CVE-2022-22235 [HIGH] CWE-754 CVE-2022-22235: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engin An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based, attacker to cause Denial of Service (DoS). A PFE crash will happen when a GPRS Tunnel Protocol (GTP) packet is received with a malformed field in the IP header

CVE-2024-21598 [HIGH] CWE-1286 CVE-2024-21598: An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemo An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute

CVE-2023-44181 [HIGH] CWE-835 CVE-2023-44181: An Improperly Implemented Security Check for Standard vulnerability in storm control of Juniper Net An Improperly Implemented Security Check for Standard vulnerability in storm control of Juniper Networks Junos OS QFX5k devices allows packets to be punted to ARP queue causing a l2 loop resulting in a DDOS violations and DDOS syslog. This issue is triggered when Storm control is enabled and ICMPv6 packets are present on device. This issue affects Ju

CVE-2023-44185 [HIGH] CWE-20 CVE-2023-44185: 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 allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet. Continued receipt of this packet will cause a sustained Denial of Service condition. This issue affects:

CVE-2023-44175 [HIGH] CWE-617 CVE-2023-44175: A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows to send specific genuine PIM packets to the device resulting in rpd to crash causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. Note

CVE-2024-39529 [HIGH] CWE-134 CVE-2024-39529: A Use of Externally-Controlled Format String vulnerability in the Packet Forwarding Engine (PFE) of A Use of Externally-Controlled Format String 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). If DNS Domain Generation Algorithm (DGA) detection or tunnel detection, and DNS-filtering traceoptions are configured, and spe

CVE-2023-22412 [HIGH] CWE-667 CVE-2023-22412: An Improper Locking vulnerability in the SIP ALG of Juniper Networks Junos OS on MX Series with MS-M An Improper Locking vulnerability in the SIP ALG of Juniper Networks Junos OS on MX Series with MS-MPC or MS-MIC card and SRX Series allows an unauthenticated, network-based attacker to cause a flow processing daemon (flowd) crash and thereby a Denial of Service (DoS). Continued receipt of these specific packets will cause a sustained Denial of Servic

CVE-2025-52946 [HIGH] CVE-2025-52946: A Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and A Use After Free vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an attacker sending a BGP update with a specifically malformed AS PATH to cause rpd to crash, resulting in a Denial of Service (DoS). Continuous receipt of the malformed AS PATH attribute will cause a sustained DoS cond

CVE-2024-39525 [HIGH] CWE-755 CVE-2024-39525: 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 an unauthenticated network-based attacker sending a specific BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet wil

CVE-2022-22218 [HIGH] CWE-754 CVE-2022-22218: On SRX Series devices, an Improper Check for Unusual or Exceptional Conditions when using Certificat On SRX Series devices, an Improper Check for Unusual or Exceptional Conditions when using Certificate Management Protocol Version 2 (CMPv2) auto re-enrollment, allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS) by crashing the pkid process. The pkid process cannot handle an unexpected response from the Certificate Auth

CVE-2025-21594 [HIGH] CWE-754 CVE-2025-21594: An Improper Check for Unusual or Exceptional Conditions vulnerability in the pfe (packet forwarding 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, when crafted IPv6 traffic is received and pref

CVE-2016-4921 [HIGH] CWE-399 CVE-2016-4921: By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all avai By flooding a Juniper Networks router running Junos OS with specially crafted IPv6 traffic, all available resources can be consumed, leading to the inability to store next hop information for legitimate traffic. In extreme cases, the crafted IPv6 traffic may result in a total resource exhaustion and kernel panic. The issue is triggered by traffic destin