# CVE-2021-37415: Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability

Source: https://junglewise.ai/threats/cve-2021-37415-zoho-manageengine-servicedesk-authentication-bypass-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2021-12-01. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2021-37415 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-12-01

Zoho ManageEngine ServiceDesk Plus is vulnerable to an authentication bypass due to missing authentication for critical REST-API URLs. This allows unauthenticated remote attackers to access sensitive functions and data.

Vendors: [Zoho](https://junglewise.ai/threats/vendors/zoho).

## Quick answers

**Is CVE-2021-37415 exploited in the wild?** Yes. CVE-2021-37415 is known to be exploited in the wild, first recorded on 1 December 2021. Treat it as urgent.

**How severe is CVE-2021-37415?** Critical severity, with a CVSS score of 9.8, published 1 December 2021.

**Which products and versions are affected?** Zoho ManageEngine ServiceDesk Plus before 11302.

**Is there a fix for CVE-2021-37415?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2021-37415 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2021-37415?** Check whether you run Zoho ManageEngine ServiceDesk Plus (SDP). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Zoho ManageEngine ServiceDesk Plus before 11302

## Timeline

- 2021-12-01: disclosed
- 2021-12-01: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2021-12-01: advisory: NVD publication date

## Related threats

- [Zoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2021-44077-zoho-manageengine-servicedesk-plus-remote-code-execution)