CISA Releases 12 Industrial Control Systems Advisories

CISA released 12 Industrial Control Systems ICS Advisories. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-345-01 Johnson Controls iSTAR ICSA-25-345-02 Johnson Controls iSTAR Ultra ICSA-25-345-03 AzeoTech DAQFactor...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2021-26828link is external OpenPLC ScadaBR Unrestricted Upload of File with Dangerous Type Vulnerability This type of vulnerability is a frequent attack vector fo...

CISA Adds Actively Exploited XSS Bug CVE-2021-26829 in OpenPLC ScadaBR to KEV

The U.S. Cybersecurity and Infrastructure Security Agency CISA has updated its Known Exploited Vulnerabilities KEV catalog to include a security flaw impacting OpenPLC ScadaBR, citing evidence of active exploitation. The vulnerability in question is CVE-2021-26829 CVSS score: 5.4, a cross-site...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2021-26829link is external OpenPLC ScadaBR Cross-site Scripting Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors an...

OpenPLC ScadaBR Cross-site Scripting Vulnerability

OpenPLC ScadaBR contains a cross-site scripting vulnerability via systemsettings.shtm...

Open PLC and Planet vulnerabilities

Cisco Talos' Vulnerability Discovery & Research team recently disclosed one vulnerability in the OpenPLC logic controller and four vulnerabilities in the Planet WGR-500 router. For Snort coverage that can detect the exploitation of these vulnerabilities, download the latest rule sets from...

VulnCheck KEV: CVE-2021-26829

OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows stored XSS via systemsettings.shtm...

VulnCheck KEV: CVE-2021-26828

OpenPLC ScadaBR through 0.9.1 on Linux and through 1.12.4 on Windows allows remote authenticated users to upload and execute arbitrary JSP files via viewedit.shtm...

CVE-2025-53476

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

CVE-2025-34226

OpenPLC Runtime v3 contains an input validation flaw in the /upload-program-action endpoint: the epochtime field supplied during program uploads is not validated and can be crafted to induce corruption of the programs database. After a successful malformed upload the runtime continues to operate...

CVE-2025-53476

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

CVE-2025-53476

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

CVE-2025-53476

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

EUVD-2025-32856

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

CVE-2025-53476

OpenPLC_v3 is affected by CVE-2025-53476 due to a DoS in the ModbusTCP server. A crafted sequence of TCP connections can exhaust the server’s file descriptors, causing the server to be unable to process subsequent Modbus requests. TALOS details the vulnerability in OpenPLC_v3, including the waitF...

EUVD-2021-26682

Malware in sbrugna...

EUVD-2018-13360

Malware in sbrugna...

EUVD-2021-13614

Malware in sbrugna...

OpenPLC 安全漏洞

OpenPLC is an open source programmable logic controller from the individual developer Thiago Alves. It can provide low-cost industrial solutions for automation and research. A security vulnerability exists in OpenPLC V3 that stems from a flaw in the ModbusTCP server functionality that could lead ...

OpenPLC OpenPLC_v3 ModbusTCP server denial of service vulnerability

Talos Vulnerability Report TALOS-2025-2223 OpenPLC OpenPLCv3 ModbusTCP server denial of service vulnerability October 7, 2025 CVE Number CVE-2025-53476 SUMMARY A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A...