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

> Attackers can access specific REST-API endpoints without authentication, potentially exposing sensitive data in Zoho ManageEngine ServiceDesk Plus.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 1 Dec 2021 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Sep 2021
- **Updated:** 21 Oct 2025
- **Also known as:** GHSA-wf6j-6x58-69fg

## What is CVE-2021-37415?

CVE-2021-37415 is a critical authentication bypass vulnerability in Zohocorp Manageengine Servicedesk Plus, published on 1 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2021-37415?

It affects 1 product.


Products: Zohocorp Manageengine Servicedesk Plus.

## How do I fix CVE-2021-37415?

No fix has been published for CVE-2021-37415 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 15 Dec 2021.

## Is CVE-2021-37415 being exploited?

Yes. Attackers have exploited CVE-2021-37415 in the wild since at least 1 Dec 2021.

Public exploit code:

- Zoho ManageEngine ServiceDesk Plus - Authentication Bypass (nuclei): http/cves/2021/CVE-2021-37415.yaml

## Other vulnerabilities in Zohocorp Manageengine Servicedesk Plus

- [CVE-2021-44077](https://insights.sbomify.com/CVE-2021-44077/): Zoho ManageEngine ServiceDesk Plus Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-8394](https://insights.sbomify.com/CVE-2019-8394/): Zoho ManageEngine ServiceDesk Plus (SDP) File Upload (high 7.5, exploited in the wild)
- [CVE-2021-44526](https://insights.sbomify.com/CVE-2021-44526/): Auth bypass in n/a (critical 9.8)
- [CVE-2019-8395](https://insights.sbomify.com/CVE-2019-8395/): Path traversal in n/a (critical 9.8)
- [CVE-2020-35682](https://insights.sbomify.com/CVE-2020-35682/): Auth bypass in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37415 and fix it if it is affected.

What it is: CVE-2021-37415 is a critical authentication bypass vulnerability in Zohocorp Manageengine Servicedesk Plus, published on 1 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2021-37415 in the wild since at least 1 Dec 2021.

Affected product: Zohocorp Manageengine Servicedesk Plus. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-37415/ (Markdown: https://insights.sbomify.com/CVE-2021-37415/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37415
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37415
- OSV: https://osv.dev/vulnerability/CVE-2021-37415

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-37415/
Summaries are generated and may contain mistakes; the official description above is the record.