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CVE-2021-20147
ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the…
Medium5.3EPSS 7.1%
- Published
- Updated
- Reserved
- Assigned by
- tenable
Description
ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.7% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
- Observable Response Discrepancy
- CWE-203 (opens in a new tab)All about CWE-203 and its CVEs
Affected products
ManageEngine ADSelfService Plus
- affected < 6116
References (1)
- https://www.tenable.com/security/research/tra-2021-52 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-20147)Record last updated .