High severity7.5NVD Advisory· Published Aug 4, 2025· Updated Apr 15, 2026
CVE-2025-41691
CVE-2025-41691
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Patches
Vulnerability mechanics
References
1News mentions
1- ABB AC500 V3 Multiple VulnerabilitiesCISA ICS Advisories