HOME VULNERABILITIESCVE-2008-3866

MEDIUM

CVE-2008-3866

CWE-287Published: January 21, 2009· Updated: Jun 16, 2026

4.6

CVSS v3.1

Official Description

The Trend Micro Personal Firewall service (aka TmPfw.exe) in Trend Micro Network Security Component (NSC) modules, as used in Trend Micro OfficeScan 8.0 SP1 Patch 1 and Internet Security 2007 and 2008 17.0.1224, relies on client-side password protection implemented in the configuration GUI, which allows local users to bypass intended access restrictions and change firewall settings by using a modified client to send crafted packets.

Technical Analysis

CVE-2008-3866 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityP

IntegrityP

AvailabilityP

AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors & Products

trend_micro3 product(s)

internet security 2007internet security 2008officescan

Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://secunia.com/advisories/31160

PATCHhttp://secunia.com/advisories/33609

PATCHhttp://www.securityfocus.com/bid/33358

PATCHhttp://secunia.com/advisories/31160

PATCHhttp://secunia.com/advisories/33609

PATCHhttp://www.securityfocus.com/bid/33358

ADVISORYhttp://secunia.com/secunia_research/2008-43/

ADVISORYhttp://www.trendmicro.com/ftp/documentation/readme/OSCE8.0_SP1_Patch1_CriticalPatch_3191_Readme.txt

ADVISORYhttp://secunia.com/secunia_research/2008-43/

ADVISORYhttp://www.trendmicro.com/ftp/documentation/readme/OSCE8.0_SP1_Patch1_CriticalPatch_3191_Readme.txt

All References (18)

→

http://secunia.com/advisories/31160Patch · Vendor Advisory

→

http://secunia.com/advisories/33609Patch · Vendor Advisory

→

http://secunia.com/secunia_research/2008-43/Vendor Advisory

→

http://www.securityfocus.com/bid/33358Patch

→

http://www.securitytracker.com/id?1021616

→

http://www.securitytracker.com/id?1021617

→

http://www.trendmicro.com/ftp/documentation/readme/OSCE8.0_SP1_Patch1_CriticalPatch_3191_Readme.txtVendor Advisory

→

http://www.vupen.com/english/advisories/2009/0191

→

https://exchange.xforce.ibmcloud.com/vulnerabilities/48108

→

http://secunia.com/advisories/31160Patch · Vendor Advisory

→

http://secunia.com/advisories/33609Patch · Vendor Advisory

→

http://secunia.com/secunia_research/2008-43/Vendor Advisory

→

http://www.securityfocus.com/bid/33358Patch

→

http://www.securitytracker.com/id?1021616

→

http://www.securitytracker.com/id?1021617

Quick Facts

CVE IDCVE-2008-3866

CVSS Score4.6 / 10

SeverityMEDIUM

WeaknessCWE-287

CISA KEVNo

Affected1 vendor(s)

PublishedJan 21, 2009

Related CVEs (CWE-287)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2008-3866 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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