CVE-2023-37413Network attack vector

Unauthenticated username enumeration via response discrepancy

Published Jan 29, 2025 · Updated Feb 12, 2025

Username disclosure in IBM Aspera Faspex 5.0.0 through 5.0.10 allows remote attackers to enumerate valid usernames. The public IBM bulletin does not identify the affected request or response field; it states only that differing responses disclose sensitive username information. No authentication or user interaction is required, and the reported consequence is limited to username disclosure.

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

What happened

Username disclosure in IBM Aspera Faspex 5.0.0 through 5.0.10 allows remote attackers to enumerate valid usernames. The public IBM bulletin does not identify the affected request or response field; it states only that differing responses disclose sensitive username information. No authentication or user interaction is required, and the reported consequence is limited to username disclosure.

The record

CVE
CVE-2023-37413
Published
Jan 29, 2025
Updated
Feb 12, 2025
Vendor
IBM
Product
IBM Aspera Faspex
Classifications
CWE-204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 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=5.0.0 <=5.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Aspera Faspexversion=5.0.0 <=5.0.10

Published CVSS scores

5.3IBM X-ForceCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3NIST NVDCVSS: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

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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