Vulnerability Monitor

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CVE-2024-30392

A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition. This issue affects: Junos OS: * all versions before 21.2R3-S6, * from 21.3 before 21.3R3-S5, * from 21.4 before 21.4R3-S5, * from 22.1 before 22.1R3-S3, * from 22.2 before 22.2R3-S1, * from 22.3 before 22.3R2-S2, 22.3R3, * from 22.4 before 22.4R2-S1, 22.4R3.

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 14 products from juniper, from juniper, from juniper and 11 others, 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

2024-04-12T16:15:39.040

Last Modified

2026-01-23T16:18:48.687

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-121
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System juniper junos < 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.2 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.3 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.1 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Hardware juniper ms-mic - No
Hardware juniper ms-mpc - No
Hardware juniper mx-spc3 - No
Hardware juniper mx10004 - No
Hardware juniper mx10008 - No
Hardware juniper mx2008 - No
Hardware juniper mx2010 - No
Hardware juniper mx2020 - No
Hardware juniper mx204 - No
Hardware juniper mx240 - No
Hardware juniper mx304 - No
Hardware juniper mx480 - No
Hardware juniper mx960 - 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.