VULNERABILITY INTELLIGENCE
CVE-2021-40539
CVSS score9.8 CRITICAL
EPSS probability98.96%
CISA KEVKnown exploited vulnerability
Published2021-09-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Known Exploited Vulnerability
Zoho ManageEngine ADSelfService Plus Authentication Bypass Vulnerability
Vendor / product: Zoho / ManageEngine
Description
Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execution.
Weakness classification
- CWE-706: Use of Incorrectly-Resolved Name or Reference
Primary references
- cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
- cve@mitre.org — Product
- cve@mitre.org — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Product
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource