CVE-2004-1291

qwik-smtpd - Buffer Overflow via Long HELO Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-1291. PoCs published by Jonathan Rockway.

AI-analyzed exploit summary This exploit demonstrates a buffer overflow vulnerability in QwikMail's SMTP HELO request handling. By sending an overly long HELO command, an attacker can potentially execute arbitrary code or abuse the server as an unauthorized mail relay.

Description

Buffer overflow in qwik-smtpd allows remote attackers to use the server as an SMTP spam relay via a long HELO command, which overwrites the adjacent localIP data buffer.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jonathan Rockway · textdoslinux
https://www.exploit-db.com/exploits/25004

This exploit demonstrates a buffer overflow vulnerability in QwikMail's SMTP HELO request handling. By sending an overly long HELO command, an attacker can potentially execute arbitrary code or abuse the server as an unauthorized mail relay.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Theoretical
Target: QwikMail (qwik-smtpd)
No auth needed
Prerequisites: Network access to the vulnerable SMTP server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Vendor Advisory x_refsource_misc
http://tigger.uic.edu/~jlongs2/holes/qwik-smtpd.txt
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/18555

Scores

EPSS 0.0246
EPSS Percentile 82.4%

Details

Status published
Products (1)
amir_malik/qwik_smtpd
Published Jan 10, 2005
Tracked Since Feb 18, 2026