Vulnerability Database

383,463

Total vulnerabilities in the database

CVE-2021-37415 — zohocorp / manageengine_servicedesk_plus

Missing Authentication for Critical Function

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: Sep 10, 2026
  • CVE: CVE-2021-37415
  • Severity: Critical
  • Exploit:
  • CISA KEV:

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

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.

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