CVE-2005-1013

MailEnable Enterprise <= 1.04 and Professional <= 1.54 - Denial of Service via SMTP EHLO Unicode String

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-1013. PoCs published by CorryL.

AI-analyzed exploit summary This exploit targets a denial-of-service vulnerability in MailEnable SMTP servers by sending a malformed EHLO command with an unicode string. It establishes a TCP connection to port 25 and sends the payload, causing the SMTP service to crash.

Description

The SMTP service in MailEnable Enterprise 1.04 and earlier and Professional 1.54 and earlier allows remote attackers to cause a denial of service (server crash) via an EHLO command with a Unicode string.

Exploits (1)

exploitdb WORKING POC VERIFIED
by CorryL · perldoswindows
https://www.exploit-db.com/exploits/916

This exploit targets a denial-of-service vulnerability in MailEnable SMTP servers by sending a malformed EHLO command with an unicode string. It establishes a TCP connection to port 25 and sends the payload, causing the SMTP service to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: MailEnable (Enterprise <= 1.04, Professional <= 1.54)
No auth needed
Prerequisites: Network access to the target SMTP server (port 25)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/12994
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/19948
Patch vdb-entry x_refsource_sectrack
http://securitytracker.com/id?1013637
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/19973
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/15232
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=111273637518494&w=2
Patch x_refsource_confirm
http://www.mailenable.com/hotfix/
Exploit, Patch, Vendor Advisory x_refsource_misc
http://www.securiteam.com/windowsntfocus/5HP031PFFG.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/14812

Scores

EPSS 0.0572
EPSS Percentile 92.0%

Details

Status published
Products (10)
mailenable/mailenable_enterprise 1.00
mailenable/mailenable_enterprise 1.01
mailenable/mailenable_enterprise 1.02
mailenable/mailenable_enterprise 1.03
mailenable/mailenable_enterprise 1.04
mailenable/mailenable_professional 1.5
mailenable/mailenable_professional 1.51
mailenable/mailenable_professional 1.52
mailenable/mailenable_professional 1.53
mailenable/mailenable_professional 1.54
Published May 02, 2005
Tracked Since Feb 18, 2026