What it is
CVE-2008-3704 is an unauthenticated vulnerability affecting Microsoft Visual Studio. Heap-based buffer overflow in the MaskedEdit ActiveX control in Msmask32.ocx 6.0.81.69, and possibly other versions before...
Vulnerability report
Exploited in the wild
High confidence
Not in CISA KEV
CVE-2008-3704
Visual Studio
Microsoft / Visual Studio
- Severity
- CVSS 9.3 · High
- Confidence
- High
- Exploit status
- Exploited in the wild
- EPSS
- 55.9%
- First observed
- —
- Last observed
- —
Decision summary
What security teams need to know first
Direct answers before the deeper technical record.
Is it exploited?
Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.
Who is affected?
Microsoft / Visual Studio.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Visual Studio
Heap-based buffer overflow in the MaskedEdit ActiveX control in Msmask32.ocx 6.0.81.69, and possibly other versions before 6.0.84.18, in Microsoft Visual Studio 6.0, Visual Basic 6.0, Visual Studio .NET 2002 SP1 and 2003 SP1, and Visual FoxPro 8.0 SP1 and 9.0 SP1 and SP2 allows remote attackers to execute arbitrary code via a long Mask parameter, related to not "validating property values with boundary checks," as exploited in the wild in August 2008, aka "Masked Edit Control Memory Corruption Vulnerability."
- Published
- 18 Aug 2008
- Exploitation Reported
- 18 Aug 2008
- Attack vector
- Remote
- Complexity
- —
- Privileges
- None
- User interaction
- —
Tags
metasploit
dotnet
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2008-3704
- MS08-070 docs.microsoft.com · Vendor Advisory https://docs.microsoft.com/en-us/security-updates/securitybulletins/2...
- 31498 secunia.com · Third-Party Advisory http://secunia.com/advisories/31498
- TA08-344A us-cert.gov · Third-Party Advisory http://www.us-cert.gov/cas/techalerts/TA08-344A.html
- 6244 exploit-db.com · Exploit https://www.exploit-db.com/exploits/6244
- 6317 exploit-db.com · Exploit https://www.exploit-db.com/exploits/6317
- 1020710 securitytracker.com · VDB Entry http://www.securitytracker.com/id?1020710
- ADV-2008-2380 vupen.com · VDB Entry http://www.vupen.com/english/advisories/2008/2380
- ADV-2008-3382 vupen.com · VDB Entry http://www.vupen.com/english/advisories/2008/3382
- oval:org.mitre.oval:def:5794 oval.cisecurity.org · VDB Entry https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.m...
- 30674 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/30674
- visualstudio-maskededit-bo(44444) exchange.xforce.ibmcloud.com · VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/44444
- support.avaya.com/elmodocs2/security/ASA-2008-473.htm support.avaya.com · CVE Record http://support.avaya.com/elmodocs2/security/ASA-2008-473.htm
Exploitation evidence
Why KEV Intelligence marks this CVE as exploited
Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.
Exploited in the wild
CVE
Independent exploitation attestation added to the KEV Intelligence record.
Proof of concept available
Public scanner or PoC coverage increases practical exploitability.
Known exploited vulnerability sources
Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2008-08-18 19:00 UTC |
Detection
Operational artifacts and observed signals
Make the evidence actionable in scanner, SOC, and edge-control workflows.
Observed signals
- Request targets
- 0
- User-Agents
- 0
Raw values available in Pro and Enterprise.
Scanner coverage
Metasploit template detected 28 Apr 2025.
View Metasploit template (opens in new tab)Virtual patch status
No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.
Learn about virtual patches →Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ms08_070_visual_studio_msmask.rb | 28 Apr 2025 |
Risk and context
Severity, weaknesses, and research context
CVSS v2.0
9.3
High
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
55.9%
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Timeline
From disclosure to observed exploitation
-
Metasploit module available
Exploit module available
-
Public PoC available
Public proof-of-concept code published
-
Added to KEV Intelligence KEV Feed
High-confidence, third-party attested exploitation
-
CVE published
Vulnerability disclosed publicly
-
CVE ID reserved
Identifier reserved by the CNA
Pro API
Automate this intelligence
Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
- Evidence confidence and provenance
- First-party sensor telemetry
- PoC and scanner references
- Affected versions and enrichment
- Automation-ready JSON delivery
GET /api/v2/pro/kevs/CVE-2008-3704
Free JSON includes basic KEV fields{
"cve_id": "CVE-2008-3704",
"confidence": "High",
"cvss_score": 9.3,
"cvss_estimated": false,
"epss_score": 0.55917,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}Early warning alerts
Get alerts on high-impact exploitation
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