CVE-2021-44515
Zoho Desktop Central Authentication Bypass Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 10 Dec 2021
Description
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 10.1.2128.0 through 10.1.2137.2, upgrade to 10.1.2137.3.
Key facts
- Published
- 12 Dec 2021
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 10 Dec 2021
- KEV fix due
- 24 Dec 2021
- EPSS
- 99.867% likely to be exploited in the next 30 days, higher than 99.963% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 10 Dec 2021 CVE-2021-44515 added to CISA KEV
- 10 Dec 2021 Added to the CISA KEV catalogue
- 12 Dec 2021 Published