Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2020-26066

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected system. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by persuading a user to import a crafted XML file with malicious entries. A successful exploit could allow the attacker to read and write files within the affected application.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

No technical information available.

Software From Fixed in
cisco / catalyst_sd-wan_manager 17.2.4 17.2.4.x
cisco / catalyst_sd-wan_manager 17.2.5 17.2.5.x
cisco / catalyst_sd-wan_manager 17.2.6 17.2.6.x
cisco / catalyst_sd-wan_manager 17.2.7 17.2.7.x
cisco / catalyst_sd-wan_manager 17.2.8 17.2.8.x
cisco / catalyst_sd-wan_manager 17.2.9 17.2.9.x
cisco / catalyst_sd-wan_manager 17.2.10 17.2.10.x
cisco / catalyst_sd-wan_manager 18.2.0 18.2.0.x
cisco / catalyst_sd-wan_manager 18.3.0 18.3.0.x
cisco / catalyst_sd-wan_manager 18.3.1 18.3.1.x
cisco / catalyst_sd-wan_manager 18.3.1.1 18.3.1.1.x
cisco / catalyst_sd-wan_manager 18.3.3 18.3.3.x
cisco / catalyst_sd-wan_manager 18.3.3.1 18.3.3.1.x
cisco / catalyst_sd-wan_manager 18.3.4 18.3.4.x
cisco / catalyst_sd-wan_manager 18.3.5 18.3.5.x
cisco / catalyst_sd-wan_manager 18.3.6 18.3.6.x
cisco / catalyst_sd-wan_manager 18.3.6.1 18.3.6.1.x
cisco / catalyst_sd-wan_manager 18.3.7 18.3.7.x
cisco / catalyst_sd-wan_manager 18.3.8 18.3.8.x
cisco / catalyst_sd-wan_manager 18.4.0 18.4.0.x
cisco / catalyst_sd-wan_manager 18.4.0.1 18.4.0.1.x
cisco / catalyst_sd-wan_manager 18.4.1 18.4.1.x
cisco / catalyst_sd-wan_manager 18.4.3 18.4.3.x
cisco / catalyst_sd-wan_manager 18.4.4 18.4.4.x
cisco / catalyst_sd-wan_manager 18.4.5 18.4.5.x
cisco / catalyst_sd-wan_manager 18.4.302 18.4.302.x
cisco / catalyst_sd-wan_manager 18.4.303 18.4.303.x
cisco / catalyst_sd-wan_manager 18.4.501_es 18.4.501_es.x
cisco / catalyst_sd-wan_manager 19.0.0 19.0.0.x
cisco / catalyst_sd-wan_manager 19.0.1a 19.0.1a.x
cisco / catalyst_sd-wan_manager 19.1.0 19.1.0.x
cisco / catalyst_sd-wan_manager 19.2.0 19.2.0.x
cisco / catalyst_sd-wan_manager 19.2.1 19.2.1.x
cisco / catalyst_sd-wan_manager 19.2.2 19.2.2.x
cisco / catalyst_sd-wan_manager 19.2.3 19.2.3.x
cisco / catalyst_sd-wan_manager 19.2.31 19.2.31.x
cisco / catalyst_sd-wan_manager 19.2.097 19.2.097.x
cisco / catalyst_sd-wan_manager 19.2.098 19.2.098.x
cisco / catalyst_sd-wan_manager 19.2.099 19.2.099.x
cisco / catalyst_sd-wan_manager 19.2.929 19.2.929.x
cisco / catalyst_sd-wan_manager 19.3.0 19.3.0.x
cisco / catalyst_sd-wan_manager 20.1.1 20.1.1.x
cisco / catalyst_sd-wan_manager 20.1.1.1 20.1.1.1.x
cisco / catalyst_sd-wan_manager 20.1.12 20.1.12.x
cisco / catalyst_sd-wan_manager 20.3.1 20.3.1.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.