Zoho Desktop Central Authentication Bypass Vulnerability

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• cpe zohocorp/manageengine desktop centralversion unspecified
• stated Desktop Central<= 1.2127.17
• vendor Zoho Desktop Centralversion unspecified

How to fix CVE-2021-44515

• Recommended remediation

  Apply updates per vendor instructions. CISA due date Dec 24, 2021.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Dec 10, 2021 · Catalog

   Detected

   Zoho ManageEngine Desktop Central is vulnerable to authentication bypass, leading to remote code execution on the server, as exploited in the wild in December 2021. For Enterprise builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For Enterprise builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3. For MSP builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For MSP builds 10

2. Dec 10, 2021 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. Dec 24, 2021 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

   Zoho ManageEngine Desktop Central is vulnerable to authentication bypass, leading to remote code execution on the server, as exploited in the wild in December 2021. For Enterprise builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For Enterprise builds 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3. For MSP builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For MSP builds 10

Sources

• CISA KEVConfirmed exploitationCVE-2021-44515

  Zoho Desktop Central contains an authentication bypass vulnerability that could allow an attacker to execute arbitrary code in the Desktop Central MSP server.

  cisa.gov
• CVE.orgVulnerability recordCVE-2021-44515

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2021-44515

  30-day exploitation probability 99.9%

  first.org
• NIST NVDVulnerability recordCVE-2021-44515

  Zoho ManageEngine Desktop Central is vulnerable to authentication bypass, leading to remote code execution on the server, as exploited in the wild in December 2021. For Enterprise builds 10.1.2127.17 and earlier, upgrade to 10.1.2127.18. For Enterprise builds 10.1.2128.0 through

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2021-44515

  Zoho Desktop Central contains an authentication bypass vulnerability that could allow an attacker to execute arbitrary code in the Desktop Central MSP server.

  vulncheck.com

References

• VulnCheck exploitation evidence · dashboard.shadowserver.org
• VulnCheck exploitation evidence · dashboard.shadowserver.org
• VulnCheck exploitation evidence · go.crowdstrike.com
• CISA note · nvd.nist.gov
• Issue Tracking · pitstop.manageengine.com
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov
• Broken Link · cisa.gov
• VulnCheck exploitation evidence · cve.org
• VulnCheck exploitation evidence · ic3.gov
• Exploit · manageengine.com

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.