CVE-2015-5358: Juniper Junos OS 12.1X44 before 12.1X44-D50, 12.1X46 before 12.1X46-D35, 12.1X47 before 12.1X47-D25, 12.3 b...

Security readout for executives and security teams

This is a remote denial-of-service issue in older Juniper Junos OS releases. A high volume of requests can exhaust network buffers and connections, causing service restart or disruption. It is operationally important for organizations still running the listed Junos trains, but the provided sources do not show active exploitation. Exposure is primarily organizations operating Juniper Junos OS versions listed as vulnerable. Risk increases where affected devices can receive large volumes of TCP requests from untrusted or poorly controlled networks. Prioritize remediation where affected Juniper devices support critical network paths or are reachable from untrusted networks. The issue can disrupt availability, but current evidence does not support treating it as actively exploited. Mitigation focus: Identify Junos OS versions on all Juniper devices.; Upgrade affected trains to the fixed versions listed in the CVE, or later.; Review Juniper JSA10686 before scheduling remediation..

Prepared

Jun 13, 2026, 22:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.