CVE-2012-3845

LAN Messenger 1.2.28 - Denial of Service via Long Initiation Request String

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2012-3845. PoCs published by Julien Ahrens.

AI-analyzed exploit summary This exploit sends a malformed packet with a large buffer (8190 bytes) to trigger a denial-of-service condition in LAN Messenger <= v1.2.28. The payload consists of a header ('MSG') followed by a junk buffer of 'A' characters.

Description

Buffer overflow in LAN Messenger 1.2.28 and earlier allows remote attackers to cause a denial of service (crash) via a long string in an initiation request.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Julien Ahrens · pythondoswindows
https://www.exploit-db.com/exploits/18816

This exploit sends a malformed packet with a large buffer (8190 bytes) to trigger a denial-of-service condition in LAN Messenger <= v1.2.28. The payload consists of a header ('MSG') followed by a junk buffer of 'A' characters.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: LAN Messenger <= v1.2.28
No auth needed
Prerequisites: Network access to the target · LAN Messenger service running on default port 50000
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/53333
Third Party Advisory mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2012-05/0005.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/75319
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/18816

Scores

EPSS 0.0331
EPSS Percentile 86.9%

Details

CWE
CWE-119
Status published
Products (1)
lan_messenger/lan_messenger1.2.28
Published Jul 03, 2012
Tracked Since Feb 18, 2026