Juniper Junos 10.4 before 10.4S15, 11.4 before 11.4R9, 11.4X27 before 11.4X27.44, 12.1 before 12.1R7, 12.1X44 before 12.1X44-D20, 12.1X45 before 12.1X45-D15, 12.2 before 12.2R6, 12.3 before 12.3R3, 13.1 before 13.1R3, and 13.2 before 13.2R1, when Proxy ARP is enabled on an unnumbered interface, allows remote attackers to perform ARP poisoning attacks and possibly obtain sensitive information via a crafted ARP message.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.3, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), and availability (service disruption) for affected systems. Impacting 1 product from juniper organizations running these solutions should prioritize assessment and patching.
Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2013-10-28T22:55:04.133
2025-04-11T00:51:21.963
Deferred
CVSSv3.1: 9.3 (CRITICAL)
AV:A/AC:L/Au:N/C:N/I:C/A:N
6.5
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | juniper | junos | 10.4 | Yes |
| Operating System | juniper | junos | 11.4 | Yes |
| Operating System | juniper | junos | 11.4x27 | Yes |
| Operating System | juniper | junos | 12.1 | Yes |
| Operating System | juniper | junos | 12.1x44 | Yes |
| Operating System | juniper | junos | 12.1x45 | Yes |
| Operating System | juniper | junos | 12.2 | Yes |
| Operating System | juniper | junos | 12.3 | Yes |
| Operating System | juniper | junos | 13.1 | Yes |
| Operating System | juniper | junos | 13.2 | 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.