CVE-2021-37415

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.998 · 100 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

99.8% (100th) EPSS

CVSS 7.5 · high

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2021-12-01remediate by 2021-12-15

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability

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

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USprimaryCWE-287US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

T1190Exploit Public-Facing Application — This vulnerability allows a few REST-API URLs without authentication.exploitation

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
ZOHO Corp. ManageEngine ServiceDesk Plus≤ 11.311302fstec_bduRU
zohocorp manageengine servicedesk plus= 11.0nvdUScpe:2.3:a:zohocorp:manageengine_servicedesk_plus:*:*:*:*:*:*:*:*
zohocorp manageengine servicedesk plus= 11.1nvdUScpe:2.3:a:zohocorp:manageengine_servicedesk_plus:*:*:*:*:*:*:*:*
zohocorp manageengine servicedesk plus= 11.2nvdUScpe:2.3:a:zohocorp:manageengine_servicedesk_plus:*:*:*:*:*:*:*:*
zohocorp manageengine servicedesk plus= 11.3nvdUScpe:2.3:a:zohocorp:manageengine_servicedesk_plus:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-09-01modified 2026-06-17

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references (8)

External citations — patches, advisories, analysis.

scry

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