Synopsis
The remote device is missing a vendor-supplied security patch.
Description
The version of Junos OS installed on the remote host is EX3400 Series running Junos OS prior to 14.1X53-D115, 17.1R3, 17.2R3-S2, 17.3R3-S3, 17.4R2-S5, 18.1R3-S1, 18.2R2, or 18.3R2. It is, therefore, affected by a vulnerability. When a firewall filter is applied on the loopback interface, other firewall filters might stop working for multicast traffic. The command 'show firewall filter' can be used to confirm whether the filter is working. as referenced in the JSA10942 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Apply the relevant Junos software release referenced in Juniper advisory JSA10942