CVE Catalog

CVE-2026-35227

High
Published: Translated: NVD NIST

Summary

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections.

Risk Assessment

The organization may experience service availability disruptions, impacting business operations and customer trust.

Recommendation

It is recommended to monitor and limit the number of TCP connections and update the software to patch this vulnerability.

Related vulnerabilities

Original NVD description (English source)

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS