CVE-2021-37415

CRITICALNVD 9.89.8—Trending — 4 sources updated this weekExploited in the wild

9.8

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

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 99.8%
KEV: ⚠ Exploited

Published

September 1, 2021

Last Modified

October 31, 2025

Advisory Details (3)

Auto-updated Jun 1, 2026

⚠️ Active exploitation confirmed. Patch available. Sources: cisa.

cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-37415

generic

ServiceDesk Plus On-Premises release notes: ReadMe & updates

https://www.manageengine.com/products/service-desk/on-premises/readme.html#11302

generic

ManageEngine: ITOps, cybersecurity & service management software

https://www.manageengine.com

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 10:42 UTCEG score recompute
2026-06-04 10:42 UTCGHSA enrichment
2026-06-04 06:57 UTCEG score recompute
2026-06-04 06:57 UTCGHSA enrichment
2026-06-04 03:12 UTCEG score recompute
2026-06-04 03:12 UTCGHSA enrichment
2026-06-03 23:27 UTCEG score recompute
2026-06-03 23:27 UTCGHSA enrichment
2026-06-03 19:42 UTCEG score recompute
2026-06-03 19:42 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 15:57 UTCEG score recompute
2026-06-03 15:57 UTCGHSA enrichment
2026-06-03 12:12 UTCEG score recompute
2026-06-03 12:12 UTCGHSA enrichment
2026-06-03 08:27 UTCEG score recompute
2026-06-03 08:27 UTCGHSA enrichment
2026-06-03 04:42 UTCEG score recompute
2026-06-03 04:42 UTCGHSA enrichment
2026-06-03 00:57 UTCEG score recompute

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2021/CVE-2021-37415.yaml
First seen Jan 1, 2021
Zoho ManageEngine ServiceDesk Plus - Authentication Bypass
Open source ↗

Frequently asked(6)

What is CVE-2021-37415?

CVE-2021-37415 is a critical vulnerability published on September 1, 2021. Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication.

When was CVE-2021-37415 disclosed?

CVE-2021-37415 was first published in the National Vulnerability Database on September 1, 2021, with the most recent update on October 31, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-37415 actively exploited?

Yes. CISA added CVE-2021-37415 to the Known Exploited Vulnerabilities catalog on December 1, 2021, affecting Zoho ManageEngine ServiceDesk Plus (SDP). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2021-37415?

CVE-2021-37415 has a CVSS v3 base score of 9.8 (NVD).

Which products are affected by CVE-2021-37415?

CVE-2021-37415 affects Zoho ManageEngine ServiceDesk Plus (SDP). The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2021-37415?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-37415, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-37415

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Is Your Infrastructure Affected by CVE-2021-37415?

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CVE-2021-37415

📅 Published

🔄 Last Modified

📋 Advisory Details (3)