CVE-2024-55198Public exploitNetwork attack vector

User enumeration via password-recovery response discrepancies

Published Mar 13, 2025 · Updated Mar 19, 2025

Observable response discrepancy in Celk Sistemas Celk Saude 3.1.252.1 allows remote attackers to enumerate valid user accounts. The password recovery endpoint returns an unregistered-user error for nonexistent names but a success response for registered names. No authentication or user interaction is required, and the result discloses valid usernames that support targeted access or brute-force attempts.

CVSS severity5.3
Medium
EPSS probability0.45%
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 Celk Sistemas Celk Saude 3.1.252.1 allows remote attackers to enumerate valid user accounts. The password recovery endpoint returns an unregistered-user error for nonexistent names but a success response for registered names. No authentication or user interaction is required, and the result discloses valid usernames that support targeted access or brute-force attempts.

The record

CVE
CVE-2024-55198
Published
Mar 13, 2025
Updated
Mar 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-204, T1589.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 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?

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

5.3CISA-ADPCVSS: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 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 exploitPublished

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
T1589.001Gather Victim Identity Information: Credentials

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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