CVE-2004-1698

PopMessenger 1.60 - Denial of Service via Invalid Base64 Characters

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-1698. PoCs published by Luigi Auriemma.

AI-analyzed exploit summary This exploit targets a denial-of-service (DoS) vulnerability in PopMessenger <= 1.60 by sending multiple UDP packets with an illegal base64 character, causing the application to crash. The PoC uses a broadcast or direct IP approach to flood the target with malformed messages.

Description

The Base64 function in PopMessenger 1.60 (before 20 Sep 2004) and earlier allows remote attackers to cause a denial of service (application crash) via invalid characters in a message, which causes several alert dialogs to be displayed and leads to a crash.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Luigi Auriemma · cdoswindows
https://www.exploit-db.com/exploits/477

This exploit targets a denial-of-service (DoS) vulnerability in PopMessenger <= 1.60 by sending multiple UDP packets with an illegal base64 character, causing the application to crash. The PoC uses a broadcast or direct IP approach to flood the target with malformed messages.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: PopMessenger <= 1.60
No auth needed
Prerequisites: Network access to the target · UDP port 8473 accessible
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/17465
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/11230
Exploit, Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/12612/
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=109581586128899&w=2

Scores

EPSS 0.0316
EPSS Percentile 86.3%

Details

Status published
Products (1)
leadmind/popmessenger 1.60
Published Sep 24, 2004
Tracked Since Feb 18, 2026