CVE-2011-3322

Scadatec Procyon SCADA < 1.14 - Remote Code Execution via Long Telnet Password

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2011-3322. PoCs published by Metasploit, including Metasploit module exploits/windows/scada/procyon_core_server.

AI-analyzed exploit summary This Metasploit module exploits a stack-based buffer overflow in Procyon Core Server HMI <= v1.13 via coreservice.exe. It leverages an egghunter to bypass space constraints and achieves remote code execution by overwriting a structured exception handling record.

Description

Core Server HMI Service (Coreservice.exe) in Scadatec Limited Procyon SCADA 1.06, and other versions before 1.14, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long password to the Telnet (TCP/23) port, which triggers an out-of-bounds read or write, leading to a stack-based buffer overflow.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Metasploit · rubyremotewindows
https://www.exploit-db.com/exploits/17827

This Metasploit module exploits a stack-based buffer overflow in Procyon Core Server HMI <= v1.13 via coreservice.exe. It leverages an egghunter to bypass space constraints and achieves remote code execution by overwriting a structured exception handling record.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Procyon Core Server HMI <= v1.13
No auth needed
Prerequisites: Network access to target on port 23 · Vulnerable version of Procyon Core Server HMI
devstral-2 · analyzed Feb 16, 2026 Full analysis →
metasploit WORKING POC NORMAL
rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/scada/procyon_core_server.rb

This Metasploit module exploits a stack-based buffer overflow in Procyon Core Server's coreservice.exe (v1.13 or earlier) via unauthenticated password processing, allowing remote code execution by overwriting SEH records. It uses an egghunter to locate and execute the payload.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: Procyon Core Server HMI <= v1.13
No auth needed
Prerequisites: Network access to target's port 23 · Target running vulnerable Procyon Core Server version
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/17827
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/69632
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/45866
US Government Resource x_refsource_misc
http://www.uscert.gov/control_systems/pdf/ICSA-11-216-01.pdf
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/75371
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/8374
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/49480

Scores

EPSS 0.7159
EPSS Percentile 98.8%

Details

CWE
CWE-119
Status published
Products (2)
scadatec/procyon_scada 1.06
scadatec/procyon_scada 1.13
Published Sep 15, 2011
Tracked Since Feb 18, 2026