How severe is CVE-2025-34427?

CVE-2025-34427 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-34427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34427?

CVE-2025-34427 affects Mailenable. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34427?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-34427 have an EU (EUVD) identifier?

Yes. CVE-2025-34427 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202481.

When was CVE-2025-34427 published?

CVE-2025-34427 was published on 2025-12-10 and last updated on 2026-06-17.

CVE-2025-34427

CVE-2025-34427 is a high-severity vulnerability in Mailenable with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.4
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202481
Weakness: CWE-312
Affected product: Mailenable
Published: 2025-12-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2025-34427?: 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.
How severe is CVE-2025-34427?: CVE-2025-34427 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-34427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34427?: CVE-2025-34427 affects Mailenable. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-34427 have an EU (EUVD) identifier?: Yes. CVE-2025-34427 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202481.
When was CVE-2025-34427 published?: CVE-2025-34427 was published on 2025-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:*

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