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Vulnerability record · CVE-2006-5177 · published 10 October 2006

CVE-2006-5177: Mailenable enterprise memory buffer overflow vulnerability

Mailenable · Mailenable Enterprise

The NTLM authentication in MailEnable Professional 2.0 and Enterprise 2.0 allows remote attackers to (1) execute arbitrary code via unspecified vectors involving crafted base64 encoded NTLM Type 3 messages, or (2) cause a denial of service via crafted base64 encoded NTLM Type 1 messages, which trigger a buffer over-read.

9.3 CVSS 2.0 High EPSS 7.1% · top 6.0% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

The NTLM authentication in MailEnable Professional 2.0 and Enterprise 2.0 allows remote attackers to (1) execute arbitrary code via unspecified vectors involving crafted base64 encoded NTLM Type 3 messages, or (2) cause a denial of service via crafted base64 encoded NTLM Type 1 messages, which trigger a buffer over-read.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://labs.musecurity.com/advisories/MU-200609-01.txt PatchVendor Advisory
http://secunia.com/advisories/22179 PatchVendor Advisory
http://www.mailenable.com/hotfix/ Patch
http://www.securityfocus.com/bid/20290
http://www.vupen.com/english/advisories/2006/3862
https://exchange.xforce.ibmcloud.com/vulnerabilities/29286
https://exchange.xforce.ibmcloud.com/vulnerabilities/29287
http://labs.musecurity.com/advisories/MU-200609-01.txt PatchVendor Advisory
http://secunia.com/advisories/22179 PatchVendor Advisory
http://www.mailenable.com/hotfix/ Patch
http://www.securityfocus.com/bid/20290
http://www.vupen.com/english/advisories/2006/3862
https://exchange.xforce.ibmcloud.com/vulnerabilities/29286
https://exchange.xforce.ibmcloud.com/vulnerabilities/29287

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2006-6997Mailenable enterprise improper authentication vulnerabilityUnspecified vulnerability in a cryptographic feature in MailEnable Standard Edition before 1.93, Professional Edition before 1.73, and Enterprise Edi…EPSS 1.8%10.0CVE-2006-6605Mailenable enterprise vulnerabilityStack-based buffer overflow in the POP service in MailEnable Standard 1.98 and earlier; Professional 1.84, and 2.35 and earlier; and Enterprise 1.41,…EPSS 5.9%10.0CVE-2006-6423MailEnable IMAP Service Pre-Auth Stack Buffer OverflowMailEnable Professional and Enterprise IMAP service contains a stack-based buffer overflow reachable before authentication. A remote attacker can sen…EPSS 71%analysed10.0CVE-2006-1792Mailenable enterprise vulnerabilityUnspecified vulnerability in the POP service in MailEnable Standard Edition before 1.94, Professional Edition before 1.74, and Enterprise Edition bef…EPSS 1.8%10.0CVE-2005-2222Mailenable professional vulnerabilityUnknown vulnerability in the HTTPMail service in MailEnable Professional before 1.6 has unknown impact and attack vectors.EPSS 1.4%9.3CVE-2006-5176Mailenable enterprise memory buffer overflow vulnerabilityBuffer overflow in NTLM authentication in MailEnable Professional 2.0 and Enterprise 2.0 allows remote attackers to execute arbitrary code via "the s…EPSS 5.4%9.0CVE-2008-1276Mailenable enterprise memory buffer overflow vulnerabilityMultiple buffer overflows in the IMAP service (MEIMAPS.EXE) in MailEnable Professional Edition and Enterprise Edition 3.13 and earlier allow remote a…EPSS 7.1%9.0CVE-2008-1277Mailenable enterprise improper input validation vulnerabilityThe IMAP service (MEIMAPS.exe) in MailEnable Professional Edition and Enterprise Edition 3.13 and earlier allows remote attackers to cause a denial o…EPSS 8.3%

Source: NIST National Vulnerability Database (record CVE-2006-5177), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.