Vulnerability Database

347,061

Total vulnerabilities in the database

CVE-2015-7751 — juniper / junos

Permissions, Privileges, and Access Controls

Juniper Junos OS before 12.1X44-D50, 12.1X46 before 12.1X46-D35, 12.1X47 before 12.1X47-D25, 12.3 before 12.3R9, 12.3X48 before 12.3X48-D15, 13.2 before 13.2R7, 13.2X51 before 13.2X51-D35, 13.3 before 13.3R6, 14.1 before 14.1R5, 14.1X50 before 14.1X50-D105, 14.1X51 before 14.1X51-D70, 14.1X53 before 14.1X53-D25, 14.1X55 before 14.1X55-D20, 14.2 before 14.2R1, 15.1 before 15.1F2 or 15.1R1, and 15.1X49 before 15.1X49-D10 does not require a password for the root user when pam.conf is "corrupted," which allows local users to gain root privileges by modifying the file.

  • Published: Oct 19, 2015
  • Updated: Nov 9, 2025
  • CVE: CVE-2015-7751
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 6.9
  • AV:L/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
juniper / junos 14.1-r1 14.1-r1.x
juniper / junos 14.1-r4 14.1-r4.x
juniper / junos 13.3-r4 13.3-r4.x
juniper / junos 14.1 14.1.x
juniper / junos 14.1-r3 14.1-r3.x
juniper / junos 13.3 13.3.x
juniper / junos 13.3-r5 13.3-r5.x
juniper / junos 12.3-r2 12.3-r2.x
juniper / junos 13.3-r1 13.3-r1.x
juniper / junos 15.1x49 15.1x49.x
juniper / junos 12.3x48-d10 12.3x48-d10.x
juniper / junos 12.1x47-d10 12.1x47-d10.x
juniper / junos 13.2x51-d20 13.2x51-d20.x
juniper / junos 12.1x46-d30 12.1x46-d30.x
juniper / junos 12.3-r4 12.3-r4.x
juniper / junos 12.3-r1 12.3-r1.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 13.2-r4 13.2-r4.x
juniper / junos 12.1x46-d25 12.1x46-d25.x
juniper / junos 13.2 13.2.x
juniper / junos 12.1x46 12.1x46.x
juniper / junos 14.1x51 14.1x51.x
juniper / junos 14.2 14.2.x
juniper / junos 14.1x50 14.1x50.x
juniper / junos 13.2-r3 13.2-r3.x
juniper / junos 12.3x48 12.3x48.x
juniper / junos - 12.1x44.x
juniper / junos 12.1x47 12.1x47.x
juniper / junos 13.2-r6 13.2-r6.x
juniper / junos 13.2-r5 13.2-r5.x
juniper / junos 14.1x53 14.1x53.x
juniper / junos 13.2-r2 13.2-r2.x
juniper / junos 12.1x47-d15 12.1x47-d15.x
juniper / junos 12.3-r5 12.3-r5.x
juniper / junos 12.3x48-d5 12.3x48-d5.x
juniper / junos 12.3-r3 12.3-r3.x
juniper / junos 12.3 12.3.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 14.1x55.x
juniper / junos 13.2x51-d15 13.2x51-d15.x
juniper / junos 12.1x46-d20 12.1x46-d20.x
juniper / junos 13.3-r3 13.3-r3.x
juniper / junos 13.2x51-d10 13.2x51-d10.x
juniper / junos 12.3-r8 12.3-r8.x
juniper / junos 13.2-r1 13.2-r1.x
juniper / junos 13.2x51-d25 13.2x51-d25.x
juniper / junos 13.2x51 13.2x51.x
juniper / junos 15.1 15.1.x
juniper / junos 12.1x46-d15 12.1x46-d15.x
juniper / junos 12.1x46-d10 12.1x46-d10.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.