CVE-2006-5177

Exp

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.

Published: 2006-10-10 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-5177 is rated High Exploit Risk (86.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.06%, 93th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.65% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2006-5177

EDB-ID Source Kind Published Link
28735 exploit_db edb 2006-11-29 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-5177

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.41% 7.06% +1.65%
2 2025-05-25 5.67% 5.41% -0.26%
3 2025-04-02 — 5.67% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-5177

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2006-5177

OS Trackers for CVE-2006-5177

vendor priority summary link
alpine — CVE-2006-5177: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-5177

Affected software / configurations for CVE-2006-5177

Vendor Product Version Raw CPE
mailenable mailenable_enterprise 2.0 cpe:2.3:a:mailenable:mailenable_enterprise:2.0:*:*:*:*:*:*:*
mailenable mailenable_professional 2.0 cpe:2.3:a:mailenable:mailenable_professional:2.0:*:*:*:*:*:*:*

References for CVE-2006-5177

cvelogic Threat Intelligence