A buffer overflow vulnerability has been identified in open62541 version 1.5.5, an open-source OPC UA (Open Platform Communications Unified Architecture) implementation. The vulnerability resides in the Discovery/LDS (Local Discovery Server) handling component. A remote attacker can exploit this flaw to cause a denial of service condition. The affected code paths include server_lds.c, ua_discovery_mdns.c, ua_services_discovery.c, and ua_util.c. The issue has been tracked and reported via GitHub issue #8095. Given that open62541 is widely used in industrial and IoT environments for OPC UA communications, this vulnerability poses a risk to critical infrastructure and industrial control systems. No patch version is referenced in the advisory at this time.