Juniper Junos vulnerabilities

CVE-2024-47493 [MEDIUM] CWE-401 CVE-2024-47493: 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 the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In case of channelized Modular Interface Cards (MICs), every physical interface fla

CVE-2022-22163 [MEDIUM] CWE-20 CVE-2022-22163: An Improper Input Validation vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks J An Improper Input Validation vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If a device is configured as DHCPv6 local server and persistent storage is enabled, jdhcpd will crash when receiving a specific DHCPv6

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-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-2023-36849 [MEDIUM] CWE-703 CVE-2023-36849: An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protoco An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash

CVE-2023-36848 [MEDIUM] CWE-232 CVE-2023-36848: An Improper Handling of Undefined Values vulnerability in the periodic packet management daemon (PPM An Improper Handling of Undefined Values vulnerability in the periodic packet management daemon (PPMD) of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed CFM packet is received, it leads to an FPC crash. Continued receipt of these

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-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-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-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-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-2023-44203 [MEDIUM] CWE-703 CVE-2023-44203: An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engi An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series, EX2300, EX3400, EX4100, EX4400 and EX4600 allows a adjacent attacker to send specific traffic, which leads to packet flooding, resulting in a Denial of Service (DoS). When a specific IGMP packet

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-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