What’s Vulnerable › Vulnerabilities
CVE-2019-0041: Junos OS: EX4300-MP Series: IP transit traffic can reach the control plane via loopback interface.
- Severity: high (CVSS 8.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-04-10 · updated 2026-06-17
- Weakness: CWE-284
Description
On EX4300-MP Series devices with any lo0 filters applied, transit network traffic may reach the control plane via loopback interface (lo0). The device may fail to forward such traffic. This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R1-S2, 18.2R2 on EX4300-MP Series. This issue does not affect any other EX series devices.
Affected products
- Juniper Junos OS: 18.2, 18.2-r1
References
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