CVE-2004-0953

Jabber Server - Buffer Overflow via Long Username

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-0953. PoCs published by icbm.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in the Jabber Server by sending an overly long username during authentication. The PoC attempts to trigger the overflow by connecting to the server and authenticating with a 10240-character username.

Description

Buffer overflow in the C2S module in the open source Jabber 2.x server (Jabberd) allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long username.

Exploits (1)

exploitdb WORKING POC VERIFIED
by icbm · pythondoswindows
https://www.exploit-db.com/exploits/24770

This exploit targets a buffer overflow vulnerability in the Jabber Server by sending an overly long username during authentication. The PoC attempts to trigger the overflow by connecting to the server and authenticating with a 10240-character username.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Theoretical
Target: Jabber Server (version not specified)
Auth required
Prerequisites: Network access to the Jabber Server · Valid credentials or ability to bypass authentication
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=110144303826709&w=2
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/11741
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/18238

Scores

EPSS 0.1016
EPSS Percentile 95.1%

Details

Status published
Products (1)
jabber_software_foundation/jabber_server 2.0
Published Jan 10, 2005
Tracked Since Feb 18, 2026