Vulnerability Database

346,508

Total vulnerabilities in the database

CVE-2017-2301 — juniper / junos

On Juniper Networks products or platforms running Junos OS 11.4 prior to 11.4R13-S3, 12.1X46 prior to 12.1X46-D60, 12.3 prior to 12.3R12-S2 or 12.3R13, 12.3X48 prior to 12.3X48-D40, 13.2X51 prior to 13.2X51-D40, 13.3 prior to 13.3R10, 14.1 prior to 14.1R8, 14.1X53 prior to 14.1X53-D12 or 14.1X53-D35, 14.1X55 prior to 14.1X55-D35, 14.2 prior to 14.2R7, 15.1 prior to 15.1F6 or 15.1R3, 15.1X49 prior to 15.1X49-D60, 15.1X53 prior to 15.1X53-D30 and DHCPv6 enabled, when a crafted DHCPv6 packet is received from a subscriber, jdhcpd daemon crashes and restarts. Repeated crashes of the jdhcpd process may constitute an extended denial of service condition for subscribers attempting to obtain IPv6 addresses.

  • Published: May 30, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-2301
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

No CWE or OWASP classifications available.

Software From Fixed in
juniper / junos 15.1x49-d50 15.1x49-d50.x
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 14.2-r1 14.2-r1.x
juniper / junos 15.1x49-d30 15.1x49-d30.x
juniper / junos 13.3-r4 13.3-r4.x
juniper / junos 14.2-r2 14.2-r2.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 15.1x53-d10 15.1x53-d10.x
juniper / junos 13.3-r1 13.3-r1.x
juniper / junos 15.1-f1 15.1-f1.x
juniper / junos 11.4-r1 11.4-r1.x
juniper / junos 11.4-r6 11.4-r6.x
juniper / junos 13.2x51-d26 13.2x51-d26.x
juniper / junos 12.3-r9 12.3-r9.x
juniper / junos 12.3x48-d10 12.3x48-d10.x
juniper / junos 13.3-r8 13.3-r8.x
juniper / junos 13.2x51-d20 13.2x51-d20.x
juniper / junos 13.2x51-d35 13.2x51-d35.x
juniper / junos 14.1x53-d35 14.1x53-d35.x
juniper / junos 11.4-r12 11.4-r12.x
juniper / junos 11.4-r9 11.4-r9.x
juniper / junos 14.1x53-d10 14.1x53-d10.x
juniper / junos 12.1x46-d30 12.1x46-d30.x
juniper / junos 14.2-r3 14.2-r3.x
juniper / junos 13.2x51-d21 13.2x51-d21.x
juniper / junos 15.1-r3 15.1-r3.x
juniper / junos 12.1x46-d45 12.1x46-d45.x
juniper / junos 15.1x53-d20 15.1x53-d20.x
juniper / junos 14.2-r6 14.2-r6.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 15.1-f4 15.1-f4.x
juniper / junos 12.3-r7 12.3-r7.x
juniper / junos 12.3x48-d35 12.3x48-d35.x
juniper / junos 12.1x46-d25 12.1x46-d25.x
juniper / junos 15.1-f2 15.1-f2.x
juniper / junos 12.3x48-d30 12.3x48-d30.x
juniper / junos 15.1x49-d35 15.1x49-d35.x
juniper / junos 15.1-f3 15.1-f3.x
juniper / junos 11.4-r8 11.4-r8.x
juniper / junos 15.1x49-d45 15.1x49-d45.x
juniper / junos 12.3-r10 12.3-r10.x
juniper / junos 11.4-r3 11.4-r3.x
juniper / junos 14.1-r7 14.1-r7.x
juniper / junos 14.1-r6 14.1-r6.x
juniper / junos 11.4-r7 11.4-r7.x
juniper / junos 11.4-r4 11.4-r4.x
juniper / junos 14.2-r4 14.2-r4.x
juniper / junos 13.3-r9 13.3-r9.x
juniper / junos 13.3-r6 13.3-r6.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 13.3-r2 13.3-r2.x
juniper / junos 15.1x53-d21 15.1x53-d21.x
juniper / junos 15.1x49-d40 15.1x49-d40.x
juniper / junos 14.1-r2 14.1-r2.x
juniper / junos 14.1x55-d30 14.1x55-d30.x
juniper / junos 15.1-f5 15.1-f5.x
juniper / junos 12.3x48-d20 12.3x48-d20.x
juniper / junos 15.1x49-d20 15.1x49-d20.x
juniper / junos 11.4-r2 11.4-r2.x
juniper / junos 14.2-r5 14.2-r5.x
juniper / junos 13.2x51-d15 13.2x51-d15.x
juniper / junos 12.1x46-d20 12.1x46-d20.x
juniper / junos 13.2x51-d30 13.2x51-d30.x
juniper / junos 11.4-r5 11.4-r5.x
juniper / junos 15.1x49-d10 15.1x49-d10.x
juniper / junos 12.1x46-d40 12.1x46-d40.x
juniper / junos 13.3-r3 13.3-r3.x
juniper / junos 14.1-r5 14.1-r5.x
juniper / junos 11.4-r10 11.4-r10.x
juniper / junos 11.4-r11 11.4-r11.x
juniper / junos 15.1x49-d55 15.1x49-d55.x
juniper / junos 12.3-r8 12.3-r8.x
juniper / junos 13.2x51-d25 13.2x51-d25.x
juniper / junos 12.1x46-d15 12.1x46-d15.x
juniper / junos 12.1x46-d10 12.1x46-d10.x
juniper / junos 12.1x46-d55 12.1x46-d55.x
juniper / junos 15.1 15.1.x
juniper / junos 15.1x53 15.1x53.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 11.4 11.4.x
juniper / junos 12.3 12.3.x
juniper / junos 13.2x51 13.2x51.x
juniper / junos 13.3 13.3.x
juniper / junos 14.1 14.1.x
juniper / junos 14.2 14.2.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

Frequently Asked Questions

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.