Evidence dossier

CVE-2021-37415

CVE-2021-37415

78.7–99.5Priority evidence range

As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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

State: PUBLISHED
Published: Sep 1, 2021
Updated: Oct 21, 2025
Evidence coverage: 72%

CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS99.85%

2026-07-18 · v2026.06.15 · percentile 100.0%

Source stateConflict visible

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment

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CISA ADP Vulnrichment

Jul 19, 2026Original evidence ↗

CVEderivative copy

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CVE Program Container

Jul 19, 2026Original evidence ↗

mitreoriginal assertion

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

Jul 19, 2026Original evidence ↗

CISA KEVoriginal assertion

observed_exploitation

Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability

Jul 19, 2026Original evidence ↗

FIRST EPSSoriginal assertion

model_probability

Probability 0.998540000000; percentile 0.999600000000

Jul 19, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

n/an/a

[{"status": "affected", "version": "n/a"}]unknown

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11005:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11006:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11007:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11008:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11009:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11010:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.0:11011:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:-:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11100:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11101:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11102:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11103:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11104:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11105:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11106:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11107:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11108:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11109:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11110:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11111:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11112:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11113:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11114:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11115:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11116:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11117:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11118:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11119:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11120:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11121:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11122:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11123:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11124:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11125:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11126:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11127:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11128:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11129:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11130:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11131:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11132:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11133:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11134:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11135:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11136:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11137:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11138:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11139:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11140:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11141:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11142:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11143:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11144:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:-:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11200:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11201:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11202:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11203:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11204:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11205:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11206:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.2:11207:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.3:-:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.3:11300:*:*:*:*:*:*supported

Unknown vendorUnknown product

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.3:11301:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8

nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5

nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:P/I:P/A:P

9.8

134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.8

CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

KEV membership is authoritative for the catalog, not proof of exposure in any environment.
EPSS is a dated model probability and not an individual-environment prediction.
Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
NVD-carried upstream facts remain derivative and are not independent corroboration.
Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.