CVE-2019-5620

CRITICAL

MicroSCADA Pro SYS600 9.3 - Missing Authentication for Critical Function

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-5620. PoCs published by Brian Gorenc, juan vazquez, including Metasploit module exploits/windows/scada/abb_wserver_exec.

AI-analyzed exploit summary This Metasploit module exploits a stack buffer overflow in ABB MicroSCADA's wserver.exe via unauthenticated EXECUTE operations, allowing arbitrary command execution. It uses a VBS-based command stager to deliver payloads and includes cleanup routines.

Description

ABB MicroSCADA Pro SYS600 version 9.3 suffers from an instance of CWE-306: Missing Authentication for Critical Function.

Exploits (1)

metasploit WORKING POC EXCELLENT
by Brian Gorenc, juan vazquez · rubypocwin
https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/scada/abb_wserver_exec.rb

This Metasploit module exploits a stack buffer overflow in ABB MicroSCADA's wserver.exe via unauthenticated EXECUTE operations, allowing arbitrary command execution. It uses a VBS-based command stager to deliver payloads and includes cleanup routines.

Classification
Working Poc 100%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: ABB MicroSCADA Pro SYS600 9.3
No auth needed
Prerequisites: wserver.exe component enabled · network access to TCP port 12221
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.7008
EPSS Percentile 99.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-306
Status published
Products (1)
hitachienergy/microscada_pro_sys600 9.3
Published Apr 29, 2020
Tracked Since Feb 18, 2026