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CVE-2004-2503: INweb Mail Server can crash from frequent connections

CVE-2004-2503 · published 21 years ago

Summary

The INweb Mail Server may stop working if someone repeatedly opens and closes connections to its email receiving (POP3) or sending (SMTP) functions. This can prevent users from sending or receiving email. Apply any available updates and consider limiting the rate of connection attempts to protect the service.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
inweb	mail_server	2.40 `cpe:2.3:a:inweb:mail_server:2.40:::::::*`

Original advisory text

INweb Mail Server 2.40 allows remote attackers to cause a denial of service (crash) via a large number of connect/disconnect actions to the (1) POP3 and (2) SMTP services.

References

Fix within

Internet-facing 14 days

Internal 60 days

Not known to be exploited
Can be exploited automatically (estimated)
Gives an attacker partial control (estimated)

Severity

5.0 Medium

Exploitation

2% chance of attack within 30 days

Timeline

Published31 Dec 2004

Updated3 Nov 2026

First seen29 Sep 2026

Sources

CVE-2004-2503 · NVD

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