Vulnerability Monitor

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CVE-2024-39547


An Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS). If specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process. While not explicitly required, the impact is more severe when RIB sharding is enabled. Task accounting shows unexpected reads by the RPD Server jobs for shards: user@junos> show task accounting detail ... read:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\ This issue affects: Junos OS with cRPD:  * All versions before 21.2R3-S8,  * 21.4 before 21.4R3-S7,  * 22.1 before 22.1R3-S6,  * 22.2 before 22.2R3-S4,  * 22.3 before 22.3R3-S3,  * 22.4 before 22.4R3-S2,  * 23.2 before 23.2R2-S2,  * 24.2 before 24.2R2;  Junos OS Evolved with cRPD:  * All versions before 21.4R3-S7-EVO,  * 22.2 before 22.2R3-S4-EVO,  * 22.3 before 22.3R3-S3-EVO,  * 22.4 before 22.4R3-S2-EVO,  * 23.2 before 23.2R2-EVO.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 3 products from juniper, from juniper, from juniper organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2024, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2024-10-11T16:15:07.483

Last Modified

2026-01-26T18:19:43.567

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-755

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application juniper junos_containerized_routing_protocol_daemon - Yes
Operating System juniper junos < 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.2 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 21.4 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.1 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.2 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.3 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 22.4 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 23.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos 24.2 No
Operating System juniper junos_os_evolved < 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 21.4 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.2 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.3 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 22.4 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No
Operating System juniper junos_os_evolved 23.2 No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For juniper's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.