Vulnerability Database

325,773

Total vulnerabilities in the database

CVE-2021-37415

Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication.

  • Published: Sep 1, 2021
  • Updated: Nov 4, 2025
  • CVE: CVE-2021-37415
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 9.8
  • AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
zohocorp / manageengine_servicedesk_plus 11.1 11.1.x
zohocorp / manageengine_servicedesk_plus 11.1-11111 11.1-11111.x
zohocorp / manageengine_servicedesk_plus 11.1-11110 11.1-11110.x
zohocorp / manageengine_servicedesk_plus 11.1-11109 11.1-11109.x
zohocorp / manageengine_servicedesk_plus 11.1-11108 11.1-11108.x
zohocorp / manageengine_servicedesk_plus 11.1-11107 11.1-11107.x
zohocorp / manageengine_servicedesk_plus 11.1-11106 11.1-11106.x
zohocorp / manageengine_servicedesk_plus 11.1-11105 11.1-11105.x
zohocorp / manageengine_servicedesk_plus 11.1-11104 11.1-11104.x
zohocorp / manageengine_servicedesk_plus 11.1-11103 11.1-11103.x
zohocorp / manageengine_servicedesk_plus 11.1-11102 11.1-11102.x
zohocorp / manageengine_servicedesk_plus 11.1-11101 11.1-11101.x
zohocorp / manageengine_servicedesk_plus 11.1-11100 11.1-11100.x
zohocorp / manageengine_servicedesk_plus 11.1-11114 11.1-11114.x
zohocorp / manageengine_servicedesk_plus 11.1-11113 11.1-11113.x
zohocorp / manageengine_servicedesk_plus 11.1-11112 11.1-11112.x
zohocorp / manageengine_servicedesk_plus 11.0-11005 11.0-11005.x
zohocorp / manageengine_servicedesk_plus 11.0-11006 11.0-11006.x
zohocorp / manageengine_servicedesk_plus 11.0-11007 11.0-11007.x
zohocorp / manageengine_servicedesk_plus 11.0-11008 11.0-11008.x
zohocorp / manageengine_servicedesk_plus 11.0-11009 11.0-11009.x
zohocorp / manageengine_servicedesk_plus 11.0-11010 11.0-11010.x
zohocorp / manageengine_servicedesk_plus 11.1-11118 11.1-11118.x
zohocorp / manageengine_servicedesk_plus 11.1-11119 11.1-11119.x
zohocorp / manageengine_servicedesk_plus 11.1-11120 11.1-11120.x
zohocorp / manageengine_servicedesk_plus 11.1-11121 11.1-11121.x
zohocorp / manageengine_servicedesk_plus 11.1-11122 11.1-11122.x
zohocorp / manageengine_servicedesk_plus 11.1-11123 11.1-11123.x
zohocorp / manageengine_servicedesk_plus 11.1-11124 11.1-11124.x
zohocorp / manageengine_servicedesk_plus 11.1-11125 11.1-11125.x
zohocorp / manageengine_servicedesk_plus 11.1-11126 11.1-11126.x
zohocorp / manageengine_servicedesk_plus 11.1-11127 11.1-11127.x
zohocorp / manageengine_servicedesk_plus 11.1-11128 11.1-11128.x
zohocorp / manageengine_servicedesk_plus 11.1-11129 11.1-11129.x
zohocorp / manageengine_servicedesk_plus 11.1-11130 11.1-11130.x
zohocorp / manageengine_servicedesk_plus 11.1-11131 11.1-11131.x
zohocorp / manageengine_servicedesk_plus 11.1-11132 11.1-11132.x
zohocorp / manageengine_servicedesk_plus 11.1-11133 11.1-11133.x
zohocorp / manageengine_servicedesk_plus 11.1-11115 11.1-11115.x
zohocorp / manageengine_servicedesk_plus 11.1-11116 11.1-11116.x
zohocorp / manageengine_servicedesk_plus 11.1-11117 11.1-11117.x
zohocorp / manageengine_servicedesk_plus 11.2-11201 11.2-11201.x
zohocorp / manageengine_servicedesk_plus 11.2-11202 11.2-11202.x
zohocorp / manageengine_servicedesk_plus 11.2-11203 11.2-11203.x
zohocorp / manageengine_servicedesk_plus 11.2-11204 11.2-11204.x
zohocorp / manageengine_servicedesk_plus 11.2 11.2.x
zohocorp / manageengine_servicedesk_plus 11.3-11300 11.3-11300.x
zohocorp / manageengine_servicedesk_plus 11.3-11301 11.3-11301.x
zohocorp / manageengine_servicedesk_plus 11.3 11.3.x
zohocorp / manageengine_servicedesk_plus 11.1-11134 11.1-11134.x
zohocorp / manageengine_servicedesk_plus 11.1-11135 11.1-11135.x
zohocorp / manageengine_servicedesk_plus 11.1-11136 11.1-11136.x
zohocorp / manageengine_servicedesk_plus 11.1-11137 11.1-11137.x
zohocorp / manageengine_servicedesk_plus 11.1-11138 11.1-11138.x
zohocorp / manageengine_servicedesk_plus 11.1-11139 11.1-11139.x
zohocorp / manageengine_servicedesk_plus 11.1-11140 11.1-11140.x
zohocorp / manageengine_servicedesk_plus 11.1-11141 11.1-11141.x
zohocorp / manageengine_servicedesk_plus 11.1-11142 11.1-11142.x
zohocorp / manageengine_servicedesk_plus 11.1-11143 11.1-11143.x
zohocorp / manageengine_servicedesk_plus 11.1-11144 11.1-11144.x
zohocorp / manageengine_servicedesk_plus 11.2-11200 11.2-11200.x
zohocorp / manageengine_servicedesk_plus 11.2-11205 11.2-11205.x
zohocorp / manageengine_servicedesk_plus 11.2-11206 11.2-11206.x
zohocorp / manageengine_servicedesk_plus 11.2-11207 11.2-11207.x
zohocorp / manageengine_servicedesk_plus 11.0-11011 11.0-11011.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.