EUVD-2026-40954
ID: EUVD-2026-40954
Severity: medium
CVSS v4: 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N)
CVSS v3: Not provided
CWE: None listed
Source: ENISA
Description
MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can leverage these differences to enumerate valid usernames and email addresses. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.
Timestamps
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- Last updated:
References
No references provided.