Which products and versions are affected by CVE-2006-6423?

Affected: Mailenable Enterprise versions 1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17; Mailenable Professional versions 1.84. The full list is in the CVE brief.

Is CVE-2006-6423 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2006-6423 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-6423?

Public exploit code is available.

Is there a fix for CVE-2006-6423?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-6423 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2006-6423

CriticalPublic exploit

Stack-based buffer overflow in the IMAP service for MailEnable Professional and Enterprise Edition 2.0 through 2.35, Professional Edition 1.6 through 1.84, and Enterprise Edition 1.1 through 1.41 allows remote attackers to execute arbitrary code via a pre-authentication command…

Published Dec 12, 2006 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2006-6423 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Mailenable Enterprise, Mailenable Professional.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 71% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

10.0

AV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

71%

Higher than 99.3% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2006-6423 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

34 affected entries in total

Product	Affected versions	Fixed in
Mailenable EnterpriseMailenable	1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17	n/a
Mailenable ProfessionalMailenable	1.84	n/a

Timeline

Publicly disclosed
Dec 12, 2006
Last updated
Apr 22, 2026

References

patchhttp://secunia.com/secunia_research/2006-73/advisory/
patchhttp://www.mailenable.com/hotfix/
exploitMSF mailenable_login.rb
exploitExploitDB-16475
exploitExploitDB-3319

6 more references in the full CVE brief

FAQ

Common Questions.

Stack-based buffer overflow in the IMAP service for MailEnable Professional and Enterprise Edition 2.0 through 2.35, Professional Edition 1.6 through 1.84, and Enterprise Edition 1.1 through 1.41 allows remote attackers to execute arbitrary code via a pre-authentication command followed by a crafted parameter and a lo…
Affected: Mailenable Enterprise versions 1.1, 1.11, 1.12, 1.13, 1.14, 1.15, 1.16, 1.17; Mailenable Professional versions 1.84. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2006-6423 Running On Your Attack Surface?

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