Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2021-0220

The Junos Space Network Management Platform has been found to store shared secrets in a recoverable format that can be exposed through the UI. An attacker who is able to execute arbitrary code in the victim browser (for example via XSS) or access cached contents may be able to obtain a copy of credentials managed by Junos Space. The impact of a successful attack includes, but is not limited to, obtaining access to other servers connected to the Junos Space Management Platform. This issue affects Juniper Networks Junos Space versions prior to 20.3R1.

  • Published: Jan 15, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-0220
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

CVSS v2:

  • Severity: Low
  • Score: 3.5
  • AV:N/AC:M/Au:S/C:P/I:N/A:N
Software From Fixed in
juniper / junos_space 1.4 1.4.x
juniper / junos_space 15.1-r1 15.1-r1.x
juniper / junos_space 1.0 1.0.x
juniper / junos_space 12.3 12.3.x
juniper / junos_space 1.3 1.3.x
juniper / junos_space 12.1 12.1.x
juniper / junos_space 11.3 11.3.x
juniper / junos_space 11.2 11.2.x
juniper / junos_space 1.1 1.1.x
juniper / junos_space 1.2 1.2.x
juniper / junos_space 2.0 2.0.x
juniper / junos_space 11.1 11.1.x
juniper / junos_space 12.2 12.2.x
juniper / junos_space 11.4 11.4.x
juniper / junos_space 16.1 16.1.x
juniper / junos_space 15.2-r1 15.2-r1.x
juniper / junos_space 15.1-r2 15.1-r2.x
juniper / junos_space 18.1r1 18.1r1.x
juniper / junos_space 13.3-r3 13.3-r3.x
juniper / junos_space 14.1 14.1.x
juniper / junos_space 15.1-r4 15.1-r4.x
juniper / junos_space 15.2 15.2.x
juniper / junos_space 17.2-r1.4 17.2-r1.4.x
juniper / junos_space 19.2-r1 19.2-r1.x
juniper / junos_space 19.1-r1 19.1-r1.x
juniper / junos_space 18.4-r1 18.4-r1.x
juniper / junos_space 18.3-r1 18.3-r1.x
juniper / junos_space 18.2-r1 18.2-r1.x
juniper / junos_space 18.1-r1 18.1-r1.x
juniper / junos_space 19.3-r1 19.3-r1.x
juniper / junos_space 19.4-r1 19.4-r1.x
juniper / junos_space 20.1-r1 20.1-r1.x
juniper / junos_space 13.1 13.1.x
juniper / junos_space 13.1-r1.8 13.1-r1.8.x
juniper / junos_space 15.1 15.1.x
juniper / junos_space 17.1 17.1.x
juniper / junos_space 17.2 17.2.x
juniper / junos_space 18.1 18.1.x
juniper / junos_space 18.2 18.2.x
juniper / junos_space 18.3 18.3.x
juniper / junos_space 18.4 18.4.x
juniper / junos_space 19.1 19.1.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.