CVE-2007-3896
Description
The URL handling in Shell32.dll in the Windows shell in Microsoft Windows XP and Server 2003, with Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences in a mailto: or other URI handler, as demonstrated using mIRC, Outlook, Firefox, Adobe Reader, Skype, and other applications. NOTE: this issue might be related to other issues involving URL handlers in Windows systems, such as CVE-2007-3845. There also might be separate but closely related issues in the applications that are invoked by the handlers.
Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
EPSS
- Score
- 0.53831 (53.8% probability)
- Percentile
- 99.0%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
References
- 20071017 Re: Third-party patch for CVE-2007-3896, UPDATE NOW (securityfocus.com)mailing-list
- 20071005 URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071009 RE: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- heise-security.co.uk/news/96982
- 20071006 Re[2]: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype (securityfocus.com)mailing-list
- 20071006 Re[2]: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- 20071005 URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- blogs.zdnet.com/security/?p=577
- 20071008 Re: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype (securityfocus.com)mailing-list
- HPSBST02291 (securityfocus.com)vendor-advisory
- 26201 (secunia.com)third-party-advisory
- 20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- oval:org.mitre.oval:def:4581 (oval.cisecurity.org)vdb-entrysignature
- xs-sniper.com/blog/remote-command-exec-firefox-2005
- 20071007 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071007 Re: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype (securityfocus.com)mailing-list
- 1018831 (securitytracker.com)vdb-entry
- 20071009 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071007 Re: Re[2]: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype (securityfocus.com)mailing-list
- 20071006 Re[2]: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- 20071007 Re[2]: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- TA07-317A (us-cert.gov)third-party-advisory
- 20071007 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 943521 (microsoft.com)vendor-advisory
- 20071004 Re[2]: 0day: mIRC pwns Windows (securityfocus.com)mailing-list
- 20071005 RE: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- MS07-061 (docs.microsoft.com)vendor-advisory
- 25945 (securityfocus.com)vdb-entry
- 20071008 Re: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (securityfocus.com)mailing-list
- 20071014 Third-party patch for CVE-2007-3896 (Internet Explorer 7 invalid URI handling) available (securityfocus.com)mailing-list
- VU#403150 (kb.cert.org)third-party-advisory
- 20071011 M$ will fix URI? (securityfocus.com)mailing-list
- 20071003 0day: mIRC pwns Windows (marc.info)mailing-list
- 20071004 Re: 0day: mIRC pwns Windows (securityfocus.com)mailing-list
- 20071007 Re: [Full-disclosure] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype (marc.info)mailing-list
- 20071003 Re: 0day: mIRC pwns Windows (marc.info)mailing-list
- 1018822 (securitytracker.com)vdb-entry
Timeline
- ID reserved
- Record published
- Record last updated
Look up another CVE
About CubePath
Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:47 UTC. Sources and licenses