Topic
4 articles
CyberSecureToday covers OPC UA across 4 articles published between 28 Sep 2026 and 17 Oct 2026.
The coverage includes 4 vulnerability advisories. 4 advisories are rated critical or high severity.
Stories on OPC UA most often intersect with IEC 62443, SCADA and Industrial Cybersecurity, with Industrial, OT & IoT the most affected sector. The most recent story, “Eclipse Milo OPC UA Flaws Let Low-Privileged Actors Bypass Method Authorization”, was published 17 Oct 2026. Every article is listed below, newest first, with the affected products, severity and remediation guidance in each piece.
OT / SCADACISA Advisory ICSA-26-288-01 warns of critical vulnerabilities in Eclipse Milo OPC UA stacks that allow low-privileged actors to bypass method authorization and crash OT gateways.
OT / SCADASiemens issues emergency updates for SIMATIC Energy Manager PRO (CVE-2026-76880, CVSS 9.8) resolving an unauthenticated OPC UA deserialization vulnerability.
OT / SCADACISA and ABB have issued an emergency industrial advisory for CVE-2026-42918, a critical remote code execution vulnerability in ABB Ability System 800xA controllers.
OT / SCADACISA Advisory ICSA-26-240-02 warns of a critical heap-based buffer overflow in Schneider Electric EcoStruxure Operator Terminal Expert enabling remote code execution.