CVE-2008-3676

hMailServer 4.4.1 - Authenticated Denial of Service via IMAP Command Flood

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2008-3676. PoCs published by Antunes.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service vulnerability in hMailServer by sending a large number of IMAP commands (CREATE and RENAME) with increasing payload sizes, causing the server to crash.

Description

Unspecified vulnerability in the IMAP server in hMailServer 4.4.1 allows remote authenticated users to cause a denial of service (resource exhaustion or daemon crash) via a long series of IMAP commands.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Antunes · textdoswindows
https://www.exploit-db.com/exploits/32229

This exploit demonstrates a denial-of-service vulnerability in hMailServer by sending a large number of IMAP commands (CREATE and RENAME) with increasing payload sizes, causing the server to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: hMailServer 4.4.1
No auth needed
Prerequisites: Network access to the target hMailServer IMAP service
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/31480
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/30663
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/44429
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/4155
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/495361/100/0/threaded

Scores

EPSS 0.0276
EPSS Percentile 84.4%

Details

CWE
CWE-20
Status published
Products (1)
hmailserver/hmailserver 4.4.1
Published Aug 14, 2008
Tracked Since Feb 18, 2026