An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited Denial of Service (DoS) to the management plane. When an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn't consider existing connections anymore for subsequent connection attempts so that the connection limit can be exceeded. This issue affects Junos OS Evolved: * All versions before 21.4R3-S4-EVO, * 22.1-EVO versions before 22.1R3-S3-EVO, * 22.2-EVO versions before 22.2R3-S2-EVO, * 22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, 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 limited availability for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.
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.
2024-04-12T16:15:38.540
2025-02-06T20:36:12.843
Analyzed
CVSSv3.1: 5.3 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos_os_evolved | < 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 21.4 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.1 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.2 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
| Operating System | juniper | junos_os_evolved | 22.3 | Yes |
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.