Microsoft Windows 2000 MsgBox memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Microsoft Windows 2000 (Operating System). It has been declared as critical. This vulnerability affects the function MsgBox. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in VBScript in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, when Internet Explorer is used, might allow user-assisted remote attackers to execute arbitrary code via a long string in the fourth argument (aka helpfile argument) to the MsgBox function, leading to code execution when the F1 key is pressed, a different vulnerability than CVE-2010-0483.

The issue has been introduced in 02/17/2000. The weakness was released 03/03/2010 by Maurycy Prodeus (Website). The advisory is shared for download at This vulnerability was named CVE-2010-0917 since 03/02/2010. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3667 days. During that time the estimated underground price was around $100k and more.

Upgrading eliminates this vulnerability.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍



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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍


02/17/2000 🔍
02/25/2010 +3661 days 🔍
03/02/2010 +5 days 🔍
03/03/2010 +0 days 🔍
03/03/2010 +0 days 🔍
03/18/2015 +1841 days 🔍
09/02/2021 +2360 days 🔍



Researcher: Maurycy Prodeus
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-0917 (🔍)
X-Force: 56560
SecurityFocus: 38473 - Microsoft Internet Explorer 'winhlp32.exe' 'MsgBox()' Stack-Based Buffer Overflow Vulnerability

scip Labs:


Created: 03/18/2015 03:15 PM
Updated: 09/02/2021 10:58 PM
Changes: 03/18/2015 03:15 PM (45), 09/18/2018 08:47 AM (14), 09/02/2021 10:58 PM (2)
Complete: 🔍


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