What’s Vulnerable › Vulnerabilities

CVE-2011-4871

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-04-18 · updated 2026-06-16
• Weakness: CWE-20

Description

Open Automation Software OPC Systems.NET before 5.0 allows remote attackers to cause a denial of service via a malformed .NET RPC packet on TCP port 58723.

Affected products

• Opcsystems.Net: through 4.0

References

• http://www.us-cert.gov/control_systems/pdf/ICSA-12-012-01.pdf
• http://www.us-cert.gov/control_systems/pdf/ICSA-12-012-01.pdf

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