CVE-2025-34427 HIGH

CVE-2025-34427: MailEnable < 10.54 Cleartext Credential Storage in AUTH.TAB

Vendor Mailenable
Product MailEnable
Weakness CWE-312 · Cleartext storage
Published December 10, 2025
Last update May 14, 2026

CVSS base score

8.4/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

MailEnable versions prior to 10.54 contain a cleartext storage of credentials vulnerability that can lead to local credential compromise and account takeover. The product stores user and administrative passwords in plaintext within AUTH.TAB with overly permissive filesystem access. A local authenticated user with read access to this file can recover all user passwords and super-admin credentials, then use them to authenticate to MailEnable services such as POP3, SMTP, or the webmail interface, enabling unauthorized mailbox access and administrative control.

Key dates

02Disclosure timeline

December 10, 2025 CVE published
May 14, 2026 Record updated