Is CVE-2006-5177 being actively exploited?

CVE-2006-5177 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-5177?

CVE-2006-5177 has a CVSS 2.0 base score of 9.3 (HIGH).

CVE-2006-5177

HIGH · CVSS 9.3EPSS 7.3%EU EUVD

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.

Key facts

CVSS score: 9.3 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-119
EPSS score: 7.3% (94th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-5162)
Published: October 10, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-5162 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

mailenable / mailenable enterprise
mailenable / mailenable professional

References

http://labs.musecurity.com/advisories/MU-200609-01.txt(Patch, Vendor Advisory)
http://secunia.com/advisories/22179(Patch, Vendor 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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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