On Juniper Networks products or platforms running Junos OS 12.1X46 prior to 12.1X46-D55, 12.1X47 prior to 12.1X47-D45, 12.3R13 prior to 12.3R13, 12.3X48 prior to 12.3X48-D35, 13.3 prior to 13.3R10, 14.1 prior to 14.1R8, 14.1X53 prior to 14.1X53-D40, 14.1X55 prior to 14.1X55-D35, 14.2 prior to 14.2R6, 15.1 prior to 15.1F2 or 15.1R1, 15.1X49 prior to 15.1X49-D20 where the BGP add-path feature is enabled with 'send' option or with both 'send' and 'receive' options, a network based attacker can cause the Junos OS rpd daemon to crash and restart. Repeated crashes of the rpd daemon can result in an extended denial of service condition.
| Software | From | Fixed in |
|---|---|---|
| juniper / junos | 14.1-r1 | 14.1-r1.x |
| juniper / junos | 13.3-r7 | 13.3-r7.x |
| juniper / junos | 14.1-r4 | 14.1-r4.x |
| juniper / junos | 13.3-r4 | 13.3-r4.x |
| juniper / junos | 14.1-r3 | 14.1-r3.x |
| juniper / junos | 13.3-r5 | 13.3-r5.x |
| juniper / junos | 12.3-r11 | 12.3-r11.x |
| juniper / junos | 12.3-r2 | 12.3-r2.x |
| juniper / junos | 13.3-r1 | 13.3-r1.x |
| juniper / junos | 15.1-f1 | 15.1-f1.x |
| juniper / junos | 12.3-r9 | 12.3-r9.x |
| juniper / junos | 14.1x53-d15 | 14.1x53-d15.x |
| juniper / junos | 12.3x48-d10 | 12.3x48-d10.x |
| juniper / junos | 13.3-r8 | 13.3-r8.x |
| juniper / junos | 12.1x47-d10 | 12.1x47-d10.x |
| juniper / junos | 14.1x53-d35 | 14.1x53-d35.x |
| juniper / junos | 14.1x53-d10 | 14.1x53-d10.x |
| juniper / junos | 12.1x46-d30 | 12.1x46-d30.x |
| juniper / junos | 12.1x46-d45 | 12.1x46-d45.x |
| juniper / junos | 14.1x53-d30 | 14.1x53-d30.x |
| juniper / junos | 12.3x48-d15 | 12.3x48-d15.x |
| juniper / junos | 12.3-r4 | 12.3-r4.x |
| juniper / junos | 12.3-r1 | 12.3-r1.x |
| juniper / junos | 12.1x46-d50 | 12.1x46-d50.x |
| juniper / junos | 12.3-r7 | 12.3-r7.x |
| juniper / junos | 12.3-r6 | 12.3-r6.x |
| juniper / junos | 12.1x47-d20 | 12.1x47-d20.x |
| juniper / junos | 14.1x53-d25 | 14.1x53-d25.x |
| juniper / junos | 12.1x46-d25 | 12.1x46-d25.x |
| juniper / junos | 12.3-r12 | 12.3-r12.x |
| juniper / junos | 14.1x53-d27 | 14.1x53-d27.x |
| juniper / junos | 12.1x47-d25 | 12.1x47-d25.x |
| juniper / junos | 14.1x53-d16 | 14.1x53-d16.x |
| juniper / junos | 12.1x47-d30 | 12.1x47-d30.x |
| juniper / junos | 14.1-r7 | 14.1-r7.x |
| juniper / junos | 14.1-r6 | 14.1-r6.x |
| juniper / junos | 12.1x47-d35 | 12.1x47-d35.x |
| juniper / junos | 13.3-r9 | 13.3-r9.x |
| juniper / junos | 13.3-r6 | 13.3-r6.x |
| juniper / junos | 12.1x47-d15 | 12.1x47-d15.x |
| juniper / junos | 12.1x46-d35 | 12.1x46-d35.x |
| juniper / junos | 12.3-r5 | 12.3-r5.x |
| juniper / junos | 12.3x48-d25 | 12.3x48-d25.x |
| juniper / junos | 12.3-r3 | 12.3-r3.x |
| juniper / junos | 15.1-r1 | 15.1-r1.x |
| juniper / junos | 13.3-r2 | 13.3-r2.x |
| juniper / junos | 14.1-r2 | 14.1-r2.x |
| juniper / junos | 14.1x55-d30 | 14.1x55-d30.x |
| juniper / junos | 12.1x46-d20 | 12.1x46-d20.x |
| juniper / junos | 15.1x49-d10 | 15.1x49-d10.x |
| juniper / junos | 12.1x46-d40 | 12.1x46-d40.x |
| juniper / junos | 14.1x53-d26 | 14.1x53-d26.x |
| juniper / junos | 13.3-r3 | 13.3-r3.x |
| juniper / junos | 14.1-r5 | 14.1-r5.x |
| juniper / junos | 12.3-r8 | 12.3-r8.x |
| juniper / junos | 12.1x46-d15 | 12.1x46-d15.x |
| juniper / junos | 12.1x46-d10 | 12.1x46-d10.x |
| juniper / junos | 12.1x47-d40 | 12.1x47-d40.x |
| juniper / junos | 15.1 | 15.1.x |
| juniper / junos | 12.1x46 | 12.1x46.x |
| juniper / junos | 12.3x48 | 12.3x48.x |
| juniper / junos | 14.1x53 | 14.1x53.x |
| juniper / junos | 15.1x49 | 15.1x49.x |
| juniper / junos | 12.3 | 12.3.x |
| juniper / junos | 13.3 | 13.3.x |
| juniper / junos | 14.1 | 14.1.x |
| juniper / junos | 14.1x55 | 14.1x55.x |
| juniper / junos | 14.1x55-d20 | 14.1x55-d20.x |
| juniper / junos | 14.1x55-d25 | 14.1x55-d25.x |
| juniper / junos | 14.1x55-d16 | 14.1x55-d16.x |
| juniper / junos | 12.1x47 | 12.1x47.x |
A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.
A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.
Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.
Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.
SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.