Back to Database
Status published
Medium
CVE-2019-0041
Junos OS: EX4300-MP Series: IP transit traffic can reach the control plane via loopback interface.
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2019-0041
Credits & Attribution
No credits recorded in the NVD database.
References
More from Juniper Networks
View All →CVE-2025-6549
Junos OS: SRX Series: J-Web can be exposed on additional interfaces
Medium
6.9
CVE-2025-60011
Junos OS and Junos OS Evolved: Optional transitive BGP attribute is modified before propagation to peers causing sessions to flap
Medium
6.9
CVE-2025-60010
Junos OS and Junos OS Evolved: Device allows login for user with expired password
Medium
5.3
CVE-2025-60009
Junos Space: CLI Configlet page is vulnerable to reflected cross-site script injection
Medium
5.1
CVE-2025-60007
Junos OS: A specifically crafted 'show chassis' command causes chassisd to crash
Medium
6.8
Affected Vendor
Juniper Networks
View all reports →Affected Software
Junos OS
Vulnerable Versions:
18.2
Timeline
Official Publish:
April 10th, 2019
Last Modified:
September 16th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L