CVE-2021-20147

high-risk
Published 2022-01-03

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.

Do I need to act?

!
18.0% chance of exploitation in next 30 days
EPSS score — higher than 82% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Vendors

53
/ 100
high-risk
Severity 21/34 · High
Exploitability 13/34 · Low
Exposure 19/34 · Moderate