ICS Patch Tuesday: New Security Advisories From Siemens, Schneider, CISA
Only Siemens, Schneider Electric, CISA, and CERT@VDE have published new ICS security advisories for the May 2026 Patch Tuesday.
Siemens has published 18 new security advisories, and several of them describe critical vulnerabilities.
The company has addressed critical issues in Sentron 7KT PAC1261 Data Manager (device takeover), Simatic S7 PLC web server (XSS), Ruggedcom Rox (command execution as root, old vulnerabilities in third-party components), ROS# (arbitrary file access), Simatic CN4100 (over 300 third-party component flaws), and Opcenter RDnL (missing authentication).
Siemens has also informed customers that its Ruggedcom APE1808 product is affected by the recently disclosed Palo Alto Networks PAN-OS vulnerability that has been exploited in the wild, possibly by Chinese state-sponsored hackers.
High-severity vulnerabilities that can be exploited for remote code execution have been resolved in Simcenter Femap, Teamcenter, gPROMS Web Applications Publisher, and Ruggedcom Rox. A high-severity flaw in KACO Blueplanet inverters can lead to information disclosure,...
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