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TI-2025-27735 Aliases CVE-2025-42600GHSA-xjqh-wp4h-xm3r

Brute Force Attack Vulnerability in Meon KYC solutions

Priority MEDIUM 44CWE-307Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-307.

Summary

This vulnerability exists in Meon KYC solutions due to missing restrictions on the number of incorrect One-Time Password (OTP) attempts through certain API endpoints of login process. A remote attacker could exploit this vulnerability by performing a brute force attack on OTP, which could lead to gain unauthorized access to other user accounts.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00463 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MeonKYC solutions1.1—No fix listedCNA
  • KYC solutions VendorMeon Affected 1.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-42600
  2. 2026-10-03 Alias added: GHSA-xjqh-wp4h-xm3r

References

Advisory 1

  • TI-2025-27740 Improper Access Control Vulnerability in Meon Bidding Solutions CVSS 4.0CRITICAL 9.3
  • TI-2025-27738 Information Disclosure Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.7
  • TI-2025-27739 Detailed Error Response Vulnerability in Meon KYC solutions CVSS 4.0MEDIUM 6.9
  • TI-2025-27737 Improper Authentication Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.2
  • TI-2025-27736 Captcha Bypass Vulnerability in Meon KYC solutions CVSS 4.0HIGH 8.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences