How severe is CVE-2005-4456?

CVE-2005-4456 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2005-4456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2005-4456?

CVE-2005-4456 primarily affects Mailenable Mailenable Enterprise. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2005-4456?

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.

When was CVE-2005-4456 published?

CVE-2005-4456 was published on 2005-12-21 and last updated on 2026-06-16.

CVE-2005-4456

CVE-2005-4456 is a high-severity vulnerability in Mailenable Mailenable Enterprise with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mailenable Mailenable Enterprise
Published: 2005-12-21
Last modified: 2026-06-16

Description

Multiple buffer overflows in MailEnable Professional 1.71 and Enterprise 1.1 before patch ME-10009 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) LIST, (2) LSUB, and (3) UID FETCH commands. NOTE: it is possible that these are alternate vectors for the issue described in CVE-2005-4402.

Frequently asked questions

What is CVE-2005-4456?: Multiple buffer overflows in MailEnable Professional 1.71 and Enterprise 1.1 before patch ME-10009 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) LIST, (2) LSUB, and (3) UID FETCH commands. NOTE: it is possible that these are alternate vectors for the issue described in CVE-2005-4402.
How severe is CVE-2005-4456?: CVE-2005-4456 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2005-4456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-4456?: CVE-2005-4456 primarily affects Mailenable Mailenable Enterprise. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2005-4456?: 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.
When was CVE-2005-4456 published?: CVE-2005-4456 was published on 2005-12-21 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:mailenable:mailenable_enterprise:1.1:*:*:*:*:*:*:*
cpe:2.3:a:mailenable:mailenable_professional:1.71:*:*:*:*:*:*:*

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