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Vulnerability Intelligence

CVE-2010-0483

HighPublic exploit

vbscript.dll in VBScript 5.1, 5.6, 5.7, and 5.8 in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, when Internet Explorer is used, allows user-assisted remote attackers to execute arbitrary code by referencing a (1) local pathname, (2) UNC share pathname, or (3)…

Published Mar 3, 2010 · Updated Apr 28, 2026

Key Facts

Patch immediately
  • CVE-2010-0483 is a high-severity vulnerability (CVSS 7.6 v2) affecting Windows 2000 (Microsoft), Windows 2003 Server (Microsoft), Windows Server 2003 (Microsoft) and 1 more product.
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 87% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

7.6

AV:N/AC:H/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

87%

Higher than 99.7% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2010-0483 brief as a PDF

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Description

vbscript.dll in VBScript 5.1, 5.6, 5.7, and 5.8 in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2, when Internet Explorer is used, allows user-assisted remote attackers to execute arbitrary code by referencing a (1) local pathname, (2) UNC share pathname, or (3) WebDAV server with a crafted .hlp file in the fourth argument (aka helpfile argument) to the MsgBox function, leading to code execution involving winhlp32.exe when the F1 key is pressed, aka "VBScript Help Keypress Vulnerability."

Affected Products

7 affected entries in total
ProductAffected versionsFixed in
Windows 2000MicrosoftSee advisoryn/a
Windows 2003 ServerMicrosoftSee advisoryn/a
Windows Server 2003MicrosoftSee advisoryn/a
Windows XpMicrosoftSee advisoryn/a

Timeline

  1. Publicly disclosed

    Mar 3, 2010

  2. Last updated

    Apr 28, 2026

Weakness Type

  • CWE-94 Improper Control of Generation of Code ('Code Injection')

References

15 more references in the full CVE brief

FAQ

Common Questions.

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