cybersecurity
B&R PPT30 Operating System
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cisa.gov 1 min read
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B&R PPT30 Operating System versions before 1.8.0 have a high-severity OPC-UA server resource allocation flaw (CVE-2025-11482) that can let an unauthenticated network attacker make the service permanently unavailable. The issue is fixed in version 1.8.0, and mitigation includes keeping OPC-UA disabled unless needed and restricting access via firewalls and network segmentation.
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