CVE-2025-41691 – Siemens CODESYS Control Remote NULL Pointer Dereference Vulnerability

The following table lists the changes that have been made to the
CVE-2025-41691 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 04, 2025

    Action Type Old Value New Value
    Added Description An unauthenticated remote attacker may trigger a NULL pointer dereference in the affected CODESYS Control runtime systems by sending specially crafted communication requests, potentially leading to a denial-of-service (DoS) condition.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added Reference https://certvde.com/de/advisories/VDE-2025-070
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