securityweek.com - August 2025 ICS Patch Tuesday advisories have been published by Siemens, Schneider, Aveva, Honeywell, ABB and Phoenix Contact.

August 2025 Patch Tuesday advisories have been published by several major companies offering industrial control system (ICS) and other operational technology (OT) solutions.

Siemens has published 22 new advisories. One of them is for CVE-2025-40746, a critical Simatic RTLS Locating Manager issue that can be exploited by an authenticated attacker for code execution with System privileges.

The company has also published advisories covering high-severity vulnerabilities in Comos (code execution), Siemens Engineering Platforms (code execution), Simcenter (crash or code execution), Sinumerik controllers (unauthorized remote access), Ruggedcom (authentication bypass with physical access), Simatic (code execution), Siprotect (DoS), and Opcenter Quality (unauthorized access).

Siemens also addressed vulnerabilities introduced by the use of third-party components, including OpenSSL, Linux kernel, Wibu Systems, Nginx, Nozomi Networks, and SQLite.

Medium- and low-severity issues have been resolved in Simotion Scout, Siprotec 5, Simatic RTLS Locating Manager, Ruggedcom ROX II, and Sicam Q products.

As usual, Siemens has released patches for many of these vulnerabilities, but only mitigations or workarounds are available for some of the flaws.

Schneider Electric has released five new advisories. One of them describes four high-severity vulnerabilities in EcoStruxure Power Monitoring Expert (PME), Power Operation (EPO), and Power SCADA Operation (PSO) products. Exploitation of the flaws can lead to arbitrary code execution or sensitive data exposure.

In the Modicon M340 controller and its communication modules the industrial giant fixed a high-severity DoS vulnerability that can be triggered with specially crafted FTP commands, as well as a high-severity issue that can lead to sensitive information exposure or a DoS condition.

In the Schneider Electric Software Update tool, the company patched a high-severity vulnerability that can allow an attacker to escalate privileges, corrupt files, obtain information, or cause a persistent DoS.

Medium-severity issues that can lead to privilege escalation, DoS, or sensitive credential exposure have been patched in Saitel and EcoStruxure products.

Honeywell has published six advisories focusing on building management products, including several advisories that inform customers about Windows patches for Maxpro and Pro-Watch NVR and VMS products. The company has also released advisories covering PW-series access controller patches and security enhancements.

Aveva has published an advisory for two issues in its PI Integrator for Business Analytics. Two vulnerabilities have been patched: one arbitrary file upload issue that could lead to code execution, and a sensitive data exposure weakness.

ABB told customers on Tuesday about several vulnerabilities affecting its Aspect, Nexus and Matrix products. Some of the flaws can be exploited without authentication for remote code execution, obtaining credentials, and to manipulate files and various components.

Phoenix Contact has informed customers about a privilege escalation vulnerability in Device and Update Management. The company has described it as a misconfiguration that allows a low-privileged local user to execute arbitrary code with admin privileges. Germany’s CERT@VDE has also published a copy of the Phoenix Contact advisory.

The US cybersecurity agency CISA has published three new advisories describing vulnerabilities in Santesoft Sante PACS Server, Johnson Controls iSTAR, and Ashlar-Vellum products. CISA has also distributed the Aveva advisory and one of the Schneider Electric advisories.

A few days prior to Patch Tuesday, Rockwell Automation published an advisory informing customers about several high-severity code execution vulnerabilities affecting its Arena Simulation product.

Also prior to Patch Tuesday, Mitsubishi Electric released an advisory describing an information tampering flaw in Genesis and MC Works64 products.