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Fencer Vulns
critical 9.3

CVE-2008-3704 in the critical feed json

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 Mi…

published 2008-08-18 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3690

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
55.9%
EPSS 55.9% chance of exploitation in 30 days, percentile 99%
public exploits
4
Metasploit, Exploit-DB

Summary

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."

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/windows/browser/ms08_070_visual_studio_msmask)
  2. Published

Exploit prediction

55.92% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/browser/ms08_070_visual_studio_msmask Microsoft Visual Studio Mdmask32.ocx ActiveX Stack Buffer Overflow metasploit exploit, normal rank, 2008-08-13
  • EDB-16507 Microsoft Visual Studio - Msmask32.ocx ActiveX Buffer Overflow (MS08-070) (Metasploit) remote, 2010-11-24
  • EDB-6317 Microsoft Visual Studio - 'Msmask32.ocx' ActiveX Remote Buffer Overflow remote, 2008-08-26
  • EDB-6244 Microsoft Visual Studio - 'Msmask32.ocx' ActiveX Remote Buffer Overflow (PoC) dos, 2008-08-14
  • securityfocus.com http://www.securityfocus.com/bid/30674 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.