CVE-2021-37415 (GCVE-0-2021-37415)
Vulnerability from cvelistv5 – Published: 2021-09-01 05:29 – Updated: 2025-10-21 23:25Summary
Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication.
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-14 21:13 UTC
CWE
- n/a
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.manageengine.com | x_refsource_MISC |
| https://www.manageengine.com/products/service-des… | x_refsource_CONFIRM |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: caf7ae17-e0e7-4f45-83e5-da3d34a31fbf
Exploited: Yes
Timestamps
First Seen: 2021-12-01
Asserted: 2021-12-01
Scope
Notes: KEV entry: Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability | Affected: Zoho / ManageEngine ServiceDesk Plus (SDP) | Description: Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication | Required action: Apply updates per vendor instructions. | Due date: 2021-12-15 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-37415
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-306 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | ManageEngine ServiceDesk Plus (SDP) |
| Due Date | 2021-12-15 |
| Date Added | 2021-12-01 |
| Vendorproject | Zoho |
| Vulnerabilityname | Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: da2c7d6e-b6d3-4b39-87f0-b4f74815dc63
Exploited: Yes
Timestamps
First Seen: 2021-12-01
Asserted: 2021-12-01
Scope
Notes: KEVIntel entry: Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication. | Affected: Zoho / ManageEngine ServiceDesk Plus | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication. |
| Vendor | Zoho |
| Product | ManageEngine ServiceDesk Plus |
| Added Date | 2021-12-01T00:00:00.000Z |
| Cvss Score | 9.8 |
| Epss Score | None |
| Cvss Severity | CRITICAL |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:04 UTC
| Updated: 2026-07-10 06:14 UTC
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"lang": "en",
"value": "Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication."
},
{
"lang": "es",
"value": "Zoho ManageEngine ServiceDesk Plus versiones anteriores a 11302, es vulnerable a una omisi\u00f3n de autenticaci\u00f3n que permite algunas URLs REST-API sin autenticaci\u00f3n"
}
],
"id": "CVE-2021-37415",
"lastModified": "2024-11-21T06:15:06.820",
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"acInsufInfo": false,
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"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
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"tags": [
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],
"url": "https://www.manageengine.com"
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{
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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