CVE-2010-4709

Automated Solutions Modbus/TCP Master OPC Server < 3.0.2 - Heap-Based Buffer Overflow via Crafted MODBUS Response Packet

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2010-4709. PoCs published by Jeremy Brown.

AI-analyzed exploit summary This PoC exploits a heap corruption vulnerability in Automated Solutions Modbus/TCP OPC Server by sending a crafted MODBUS packet with a manipulated length field. The vulnerability allows writing NULL dwords past the bounds of an allocated heap buffer, potentially leading to instability or further exploitation.

Description

Heap-based buffer overflow in Automated Solutions Modbus/TCP Master OPC Server before 3.0.2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a MODBUS response packet with a crafted length field.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jeremy Brown · pythondoswindows
https://www.exploit-db.com/exploits/16040

This PoC exploits a heap corruption vulnerability in Automated Solutions Modbus/TCP OPC Server by sending a crafted MODBUS packet with a manipulated length field. The vulnerability allows writing NULL dwords past the bounds of an allocated heap buffer, potentially leading to instability or further exploitation.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Automated Solutions Modbus/TCP OPC Server version 3
No auth needed
Prerequisites: Network access to the target server on port 502 · Target server must initiate communication with the fake channel
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/64944
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/45974
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/768840
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0209
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43029
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/16040
Various Sources x_refsource_confirm
http://automatedsolutions.com/pub/asmbtcpopc/readme.htm

Scores

EPSS 0.1620
EPSS Percentile 96.5%

Details

CWE
CWE-119
Status published
Products (34)
automatedsolutions/modbus\/tcp_master_opc_server 2.0
automatedsolutions/modbus\/tcp_master_opc_server 2.0_build_1
automatedsolutions/modbus\/tcp_master_opc_server 2.0a
automatedsolutions/modbus\/tcp_master_opc_server 2.1
automatedsolutions/modbus\/tcp_master_opc_server 2.2
automatedsolutions/modbus\/tcp_master_opc_server 2.2a
automatedsolutions/modbus\/tcp_master_opc_server 2.3
automatedsolutions/modbus\/tcp_master_opc_server 2.3a
automatedsolutions/modbus\/tcp_master_opc_server 2.4
automatedsolutions/modbus\/tcp_master_opc_server 2.4a
... and 24 more
Published Jan 28, 2011
Tracked Since Feb 18, 2026