CVE-2023-27464Network attack vector

Information disclosure via distinguishable password-reset responses

Published Apr 11, 2023 · Updated Feb 7, 2025

Observable response discrepancy in Siemens Mendix Forgot Password before 3.7.1, 4.1.1, or 5.1.1 allows remote attackers to retrieve sensitive information. The module produces distinguishable responses while handling unauthenticated password-recovery requests, creating an information oracle. Siemens has not disclosed which request values trigger the discrepancy, how the responses differ, or what sensitive information the oracle reveals.

CVSS severity5.3
Medium
EPSS probability0.46%
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 Siemens Mendix Forgot Password before 3.7.1, 4.1.1, or 5.1.1 allows remote attackers to retrieve sensitive information. The module produces distinguishable responses while handling unauthenticated password-recovery requests, creating an information oracle. Siemens has not disclosed which request values trigger the discrepancy, how the responses differ, or what sensitive information the oracle reveals.

The record

CVE
CVE-2023-27464
Published
Apr 11, 2023
Updated
Feb 7, 2025
Vendor
Siemens
Product
Mendix Forgot Password
Classifications
CWE-203, CWE-204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 7, 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=All versions < V3.7.1
  2. Affected versionversion=All versions < V4.1.1
  3. Affected versionversion=All versions < V5.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · Mendix Forgot Passwordversion=All versions < V3.7.1; version=All versions < V4.1.1; version=All versions < V5.1.1

Published CVSS scores

5.3Siemens AGCVSS: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-203Observable Discrepancy
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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