CVE-2020-7231Public exploitNetwork attack vector

Unauthenticated username enumeration via distinguishable login errors

Published Jan 19, 2020 · Updated Aug 4, 2024

Information disclosure in Evoko Home 1.31 allows remote attackers to enumerate valid usernames through failed login requests. The login handler returns distinguishable error messages after checking whether a submitted username exists, exposing account validity without authentication. Network access to the login interface is sufficient, and the disclosed usernames can support targeted password attacks without exposing passwords directly.

CVSS severity5.3
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Evoko Home 1.31 allows remote attackers to enumerate valid usernames through failed login requests. The login handler returns distinguishable error messages after checking whether a submitted username exists, exposing account validity without authentication. Network access to the login interface is sufficient, and the disclosed usernames can support targeted password attacks without exposing passwords directly.

The record

CVE
CVE-2020-7231
Published
Jan 19, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-209, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1087Account Discovery

Public exploit references

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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