CVE-2025-42600Network attack vector

Account takeover via unrestricted OTP attempts

Published Apr 23, 2025 · Updated Apr 23, 2025

Improper OTP attempt restriction in Meon KYC Solutions 1.1 allows remote attackers to access other users' accounts via brute force. Certain login API endpoints accept repeated incorrect one-time passwords without limiting attempts or enforcing a retry restriction. No authentication or user interaction is required, but repeated guesses must produce a valid OTP before another user's account becomes accessible.

CVSS severity8.2
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper OTP attempt restriction in Meon KYC Solutions 1.1 allows remote attackers to access other users' accounts via brute force. Certain login API endpoints accept repeated incorrect one-time passwords without limiting attempts or enforcing a retry restriction. No authentication or user interaction is required, but repeated guesses must produce a valid OTP before another user's account becomes accessible.

The record

CVE
CVE-2025-42600
Published
Apr 23, 2025
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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

8.2CERT-InCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

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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