CVE-2010-0483
HIGHEPSS 100th pctlDescription
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."
CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
References
- http://blogs.technet.com/msrc/archive/2010/02/28/investigating-a-new-win32hlp-and-internet-explorer-issue.aspx
- http://blogs.technet.com/msrc/archive/2010/03/01/security-advisory-981169-released.aspx
- http://blogs.technet.com/srd/archive/2010/03/01/help-keypress-vulnerability-in-vbscript-enabling-remote-code-execution.aspx
- http://isec.pl/vulnerabilities/isec-0027-msgbox-helpfile-ie.txt
- http://isec.pl/vulnerabilities10.html
- http://secunia.com/advisories/38727
- http://securitytracker.com/id?1023668
- http://www.computerworld.com/s/article/9163298/New_zero_day_involves_IE_puts_Windows_XP_users_at_risk
- http://www.kb.cert.org/vuls/id/612021
- http://www.microsoft.com/technet/security/advisory/981169.mspx
- http://www.osvdb.org/62632
- http://www.securityfocus.com/bid/38463
- http://www.theregister.co.uk/2010/03/01/ie_code_execution_bug/
- http://www.us-cert.gov/cas/techalerts/TA10-103A.html
- http://www.vupen.com/english/advisories/2010/0485
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-022
- https://exchange.xforce.ibmcloud.com/vulnerabilities/56558
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7170
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8654
- https://www.metasploit.com/svn/framework3/trunk/modules/exploits/windows/browser/ie_winhlp32.rb
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.