CVE-2021-20147

MEDIUM

5.3

CVSS Score

Published: January 3, 2022 at 09:07 PM UTC

Updated: June 17, 2026 at 03:33 AM UTC

1 product affected across 1 vendorManageEngine ADSelfService Plus

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Severity

MEDIUM5.3

Exploit prediction

EPSS 7%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ManageEngine ADSelfService Plus · Zohocorp

95%

v ≤ 6.0v < 61166.1 6.1 6100 6.1 6101 6.1 6102 6.1 6103 6.1 6104 6.1 6105 6.1 6106 6.1 6107 6.1 6108 6.1 6109 6.1 6110 6.1 6111 6.1 6112 6.1 6113 6.1 6114 6.1 6115

Affected range stops below 6116, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://www.tenable.com/security/research/tra-2021-52

CVSS

5.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-203

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