CVE-2022-0564Network attack vector

Domain account enumeration via authentication timing discrepancy

Published Feb 21, 2022 · Updated Apr 25, 2025

Observable response discrepancy in Qlik Sense Enterprise on Windows before 14.44.0 allows remote attackers to enumerate domain users. The /internal_forms_authentication/ endpoint responds faster for an existing username than for a nonexistent username, creating an account-validity timing oracle. Unauthenticated network access and an LDAP-configured deployment are required; the consequence is disclosure of valid domain account names.

CVSS severity5.3
Medium
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in Qlik Sense Enterprise on Windows before 14.44.0 allows remote attackers to enumerate domain users. The /internal_forms_authentication/ endpoint responds faster for an existing username than for a nonexistent username, creating an account-validity timing oracle. Unauthenticated network access and an LDAP-configured deployment are required; the consequence is disclosure of valid domain account names.

The record

CVE
CVE-2022-0564
Published
Feb 21, 2022
Updated
Apr 25, 2025
Vendor
Qlik
Product
Qlik Sense Enterprise on Windows
Classifications
CWE-204, T1087.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=14.x <14.44.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qlik · Qlik Sense Enterprise on Windowsversion=14.x <14.44.0

Published CVSS scores

5.3DIVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
T1087.002Domain Account

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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