--- title: "CVE-2007-3896: The URL handling in Shell32.dll… | CubePath" 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…" language: en source: https://cubepath.com/security/cve/CVE-2007-3896 --- # CVE-2007-3896: The URL handling in Shell32.dll… | CubePath ## 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](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2007-3896) ## Key data ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.53831 (53.8% probability) Percentile 99.0% Scores of Nov 10, 2026 Model v2026.06.15 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [20071017 Re: Third-party patch for CVE-2007-3896, UPDATE NOW](http://www.securityfocus.com/archive/1/482437/100/0/threaded) (securityfocus.com) mailing-list - [20071005 URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119159477404263&w=2) (marc.info) mailing-list - [20071009 RE: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481871/100/0/threaded) (securityfocus.com) mailing-list - [heise-security.co.uk/news/96982](http://www.heise-security.co.uk/news/96982) - [20071006 Re\[2\]: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype](http://www.securityfocus.com/archive/1/481680/100/0/threaded) (securityfocus.com) mailing-list - [20071006 Re\[2\]: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481664/100/0/threaded) (securityfocus.com) mailing-list - [20071005 URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=bugtraq&m=119159924712561&w=2) (marc.info) mailing-list - [blogs.zdnet.com/security/?p=577](http://blogs.zdnet.com/security/?p=577) - [20071008 Re: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype](http://www.securityfocus.com/archive/1/481867/100/0/threaded) (securityfocus.com) mailing-list - [HPSBST02291](http://www.securityfocus.com/archive/1/484186/100/0/threaded) (securityfocus.com) vendor-advisory - [26201](http://secunia.com/advisories/26201) (secunia.com) third-party-advisory - [20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=bugtraq&m=119168062128026&w=2) (marc.info) mailing-list - [20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119171444628628&w=2) (marc.info) mailing-list - [oval:org.mitre.oval:def:4581](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4581) (oval.cisecurity.org) vdb-entry signature - [xs-sniper.com/blog/remote-command-exec-firefox-2005](http://xs-sniper.com/blog/remote-command-exec-firefox-2005/) - [20071007 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119175323322021&w=2) (marc.info) mailing-list - [20071007 Re: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype](http://www.securityfocus.com/archive/1/481846/100/0/threaded) (securityfocus.com) mailing-list - [1018831](http://securitytracker.com/id?1018831) (securitytracker.com) vdb-entry - [20071009 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=bugtraq&m=119194714125580&w=2) (marc.info) mailing-list - [20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119168727402084&w=2) (marc.info) mailing-list - [20071007 Re: Re\[2\]: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape,Miranda, Skype](http://www.securityfocus.com/archive/1/481881/100/0/threaded) (securityfocus.com) mailing-list - [20071006 Re\[2\]: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481671/100/0/threaded) (securityfocus.com) mailing-list - [20071007 Re\[2\]: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481839/100/0/threaded) (securityfocus.com) mailing-list - [TA07-317A](http://www.us-cert.gov/cas/techalerts/TA07-317A.html) (us-cert.gov) third-party-advisory - [20071007 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119180333805950&w=2) (marc.info) mailing-list - [943521](http://www.microsoft.com/technet/security/advisory/943521.mspx) (microsoft.com) vendor-advisory - [20071004 Re\[2\]: 0day: mIRC pwns Windows](http://www.securityfocus.com/archive/1/481493/100/100/threaded) (securityfocus.com) mailing-list - [20071005 RE: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481624/100/0/threaded) (securityfocus.com) mailing-list - [MS07-061](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-061) (docs.microsoft.com) vendor-advisory - [25945](http://www.securityfocus.com/bid/25945) (securityfocus.com) vdb-entry - [20071008 Re: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://www.securityfocus.com/archive/1/481887/100/0/threaded) (securityfocus.com) mailing-list - [20071014 Third-party patch for CVE-2007-3896 (Internet Explorer 7 invalid URI handling) available](http://www.securityfocus.com/archive/1/482292/100/0/threaded) (securityfocus.com) mailing-list - [VU#403150](http://www.kb.cert.org/vuls/id/403150) (kb.cert.org) third-party-advisory - [20071011 M$ will fix URI?](http://www.securityfocus.com/archive/1/482090/100/0/threaded) (securityfocus.com) mailing-list - [20071003 0day: mIRC pwns Windows](http://marc.info/?l=bugtraq&m=119143780202107&w=2) (marc.info) mailing-list - [20071004 Re: 0day: mIRC pwns Windows](http://www.securityfocus.com/archive/1/481505/100/0/threaded) (securityfocus.com) mailing-list - [20071007 Re: \[Full-disclosure\] URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=bugtraq&m=119195904813505&w=2) (marc.info) mailing-list - [20071006 Re: URI handling woes in Acrobat Reader, Netscape, Miranda, Skype](http://marc.info/?l=full-disclosure&m=119170531020020&w=2) (marc.info) mailing-list - [20071003 Re: 0day: mIRC pwns Windows](http://marc.info/?l=bugtraq&m=119144449915918&w=2) (marc.info) mailing-list - [1018822](http://www.securitytracker.com/id?1018822) (securitytracker.com) vdb-entry ## Timeline 1. ID reserved Jul 19, 2007 2. Record published Oct 11, 2007 3. Record last updated Aug 7, 2024 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) 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, 19:59 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)