CVE-2003-0347

Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications ...

10.0 HighPublic exploit

Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications (VBA) SDK 5.0 through 6.3 allows remote attackers to execute arbitrary code via a document with a long ID parameter.

Exploit likelihood

54.9%Up 10.2 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2003-0347
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2003-0347
Updated: 2026-11-02

EUVDEUVD-2003-0342 No score

Record: EUVD-2003-0342
Updated: 2026-11-03

GitHub AdvisoriesGHSA-pmf8-3rx6-9hmm No score

Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications ...

Record: GHSA-pmf8-3rx6-9hmm
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Microsoft Visual Basic For Applications SDK 5.0/6.0/6.2/6.3 - Document Handling Buffer Overrun	2003-09-03

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2003-0347 is a high vulnerability (CVSS 10.0) in Microsoft Visual Basic, published September 4, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 54.9%, the 99th percentile. No source names a fixed version.