Juniper Networks Junos Os vulnerabilities

CVE-2024-39526 [MEDIUM] CWE-755 CVE-2024-39526: An Improper Handling of Exceptional Conditions vulnerability in packet processing of Juniper Network 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 malformed DHCP packets to cause ingress packet processing to

CVE-2022-22217 [MEDIUM] CWE-754 CVE-2022-22217: 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 allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). The issue is caused by malformed MLD packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configured. Thes

CVE-2024-39550 [MEDIUM] CWE-401 CVE-2024-39550: A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can

CVE-2022-22250 [MEDIUM] CWE-664 CVE-2022-22250: An Improper Control of a Resource Through its Lifetime vulnerability in Packet Forwarding Engine (PF An Improper Control of a Resource Through its Lifetime vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows unauthenticated adjacent attacker to cause a Denial of Service (DoS). In an EVPN-MPLS scenario, if MAC is learned locally on an access interface but later a request to delete is received indi

CVE-2024-30380 [MEDIUM] CWE-755 CVE-2024-30380: An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS), which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for layer 2 control protocols, such as STP, RSTP, MSTP, VSTP

CVE-2023-22407 [MEDIUM] CWE-459 CVE-2023-22407: An Incomplete Cleanup vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos O An Incomplete Cleanup vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). An rpd crash can occur when an MPLS TE tunnel configuration change occurs on a directly connected router. This issue affects: Juniper Networks Juno

CVE-2023-22406 [MEDIUM] CWE-401 CVE-2023-22406: A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). In a segment-routing scenario with OSPF as IGP, when a peer interface continuously flaps, next-hop churn will happen and a continuous incre

CVE-2023-28981 [MEDIUM] CWE-20 CVE-2023-28981: An Improper Input Validation vulnerability in the kernel of Juniper Networks Junos OS and Junos OS E An Improper Input Validation vulnerability in the kernel of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If the receipt of router advertisements is enabled on an interface and a specifically malformed RA packet is received, memory corruption will happen which leads to

CVE-2025-52953 [MEDIUM] CWE-440 CVE-2025-52953: An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Network An Expected Behavior Violation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker sending a valid BGP UPDATE packet to cause a BGP session reset, resulting in a Denial of Service (DoS). Continuous receipt and processing of this packet will create a sustain

CVE-2025-52949 [MEDIUM] CWE-130 CVE-2025-52949: An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a logically adjacent BGP peer 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

CVE-2023-22395 [MEDIUM] CWE-401 CVE-2023-22395: A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued

CVE-2024-21593 [MEDIUM] CWE-703 CVE-2024-21593: An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engin An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). If an attacker sends a specific MPLS packet, which upon processing, causes an internal loop, that leads to a PF

CVE-2023-36842 [MEDIUM] CWE-703 CVE-2023-36842: An Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper DHCP Daemon (jdhcp An Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper DHCP Daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause the jdhcpd to consume all the CPU cycles resulting in a Denial of Service (DoS). On Junos OS devices with forward-snooped-client configured, if an attacker sends a sp

CVE-2024-21599 [MEDIUM] CWE-401 CVE-2024-21599: A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). If an MX Series device receives PTP packets on an MPC3E that doesn't support PTP this causes a memory leak which will result

CVE-2024-21617 [MEDIUM] CWE-459 CVE-2024-21617: An Incomplete Cleanup vulnerability in Nonstop active routing (NSR) component of Juniper Networks J An Incomplete Cleanup vulnerability in Nonstop active routing (NSR) component of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause memory leak leading to Denial of Service (DoS). On all Junos OS platforms, when NSR is enabled, a BGP flap will cause memory leak. A manual reboot of the system will restore the services. N

CVE-2023-22392 [MEDIUM] CWE-401 CVE-2023-22392: A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). PTX3000, PTX5000, QFX10000, PTX1000, PTX10002, and PTX10004, PTX10008 and PTX10016 with LC110x FPCs do not support certain flow-routes. O

CVE-2023-36839 [MEDIUM] CWE-1284 CVE-2023-36839: An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocol An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS). This issue occurs when specific LLDP packets are received and telemetry p

CVE-2023-44204 [MEDIUM] CWE-1286 CVE-2023-44204: An Improper Validation of Syntactic Correctness of Input vulnerability in Routing Protocol Daemon ( An Improper Validation of Syntactic Correctness of Input vulnerability in Routing Protocol Daemon (rpd) Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). When a malformed BGP UPDATE packet is received over an established BGP session, the rpd crashes and restarts. Th

CVE-2024-39558 [MEDIUM] CWE-252 CVE-2024-39558: An Unchecked Return Value vulnerability in the Routing Protocol Daemon (rpd) on Juniper Networks Jun An Unchecked Return Value vulnerability in the Routing Protocol Daemon (rpd) on Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows a logically adjacent, unauthenticated attacker sending a specific PIM packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS), when PIM is configured with Multicast-only Fast

CVE-2025-30653 [MEDIUM] CWE-825 CVE-2025-30653: An Expired Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Ju An Expired Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).On all Junos OS and Junos OS Evolved platforms, when an MPLS Label-Switched Path (LSP) is configured with node-link-protection and transport-clas