CVE-2008-0551

Sejoong Namo ActiveSquare - Remote Code Execution via NamoInstaller.NamoInstall.1 ActiveX Control

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-0551. PoCs published by plan-s.

AI-analyzed exploit summary This exploit targets a vulnerability in Namo Web Editor's NamoInstaller.dll (CVE-2008-0551) by invoking the Install method via an ActiveX object. It forces the download and execution of a remote executable when the page loads.

Description

The NamoInstaller.NamoInstall.1 ActiveX control in NamoInstaller.dll 3.0.0.1 and earlier in Namo Web Editor in Sejoong Namo ActiveSquare 6 allows remote attackers to execute arbitrary code via a URL in the argument to the Install method. NOTE: some of these details are obtained from third party information.

Exploits (1)

exploitdb WORKING POC VERIFIED
by plan-s · htmlremotewindows
https://www.exploit-db.com/exploits/4986

This exploit targets a vulnerability in Namo Web Editor's NamoInstaller.dll (CVE-2008-0551) by invoking the Install method via an ActiveX object. It forces the download and execution of a remote executable when the page loads.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Namo Web Editor NamoInstaller.dll version 3.0.0.1
No auth needed
Prerequisites: Victim must visit the malicious webpage · Namo Web Editor with vulnerable NamoInstaller.dll installed · ActiveX controls enabled in IE
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/39943
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/4986
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/27580
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2008/0299
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/39974
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/28649
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/27453

Scores

EPSS 0.2975
EPSS Percentile 98.0%

Details

CWE
CWE-94
Status published
Products (2)
microsoft/activex
sejoong_namo/activesquare 6
Published Feb 01, 2008
Tracked Since Feb 18, 2026