Security readout for executives and security teams
This issue can let a remote attacker crash or disrupt Open Automation Software OPC Systems.NET versions before 5.0 by sending malformed traffic to its .NET RPC service. The supplied sources describe denial of service only, not data theft or code execution. Exposure is most likely where OPC Systems.NET before 5.0 is reachable over TCP port 58723, especially from untrusted networks. Internet exposure is not established by the supplied sources. Treat this as a targeted availability risk for environments using the affected automation software. Prioritize if the service supports production operations or is reachable outside trusted network zones. Mitigation focus: Identify any OPC Systems.NET deployments earlier than version 5.0.; Check vendor or US-CERT guidance before applying product-specific fixes.; Upgrade away from pre-5.0 versions where vendor guidance supports it..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2011-4871 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
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