Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability

CRITICAL 9.8EXPLOITED (CISA KEV)CVE-2021-37415 · Published 01/09/2021 · updated 17/06/2026

Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 01/12/2021. Patch affected systems as an emergency.

In short

CVE-2021-37415 is a CRITICAL (CVSS 9.8) vulnerability affecting manageengine servicedesk plus (zohocorp).
Exploited in the wild: CISA added it to the KEV catalog on 01/12/2021.
Chance of exploitation in the next 30 days (EPSS): 99.8%, higher than 100.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
manageengine servicedesk plus zohocorp	`= 11.0= 11.1= 11.2= 11.3`	No fix yet

Description

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

References

manageengine.com · Product
manageengine.com/products/service-desk/on-premises/readme.html · Release Notes
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2021-37415

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In short

CVE-2021-37415 is a CRITICAL (CVSS 9.8) vulnerability affecting manageengine servicedesk plus (zohocorp).

Exploited in the wild: CISA added it to the KEV catalog on 01/12/2021.

Chance of exploitation in the next 30 days (EPSS): 99.8%, higher than 100.0% of all vulnerabilities.

No patched version is listed yet: follow the vendor's advisory in References.

Package

Affected versions

Patched versions

manageengine servicedesk plus

zohocorp

= 11.0= 11.1= 11.2= 11.3

No fix yet

More vulnerabilities in manageengine servicedesk plus

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