CVE-2014-5426

CVE-2014-5426 describes a denial-of-service vulnerability in MatrikonOPC OPC Server for DNP3 versions 1.2.3 and earlier. A remote attacker can trigger an unhandled exception and crash the DNP3 process by sending a specially crafted message. This vulnerability has a CVSS score of 5.0, indicating a medium severity. It is easily exploitable over the network with low attack complexity and requires no authentication, leading to a partial denial of service. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Despite this, the vulnerability has garnered some community discussion and media coverage, suggesting it received attention upon disclosure.