CVE-2021-30188

CVE-2021-30188 is a critical stack-based buffer overflow vulnerability affecting the CODESYS V2 runtime system, specifically versions prior to 2.4.7.55, and impacting products from vendors like CODESYS and WAGO. With a CVSS score of 9.8, it allows for unauthenticated remote attackers to achieve full compromise (confidentiality, integrity, availability) with low attack complexity. While the EPSS score is low, indicating a lower likelihood of exploitation in the wild compared to many other CVEs, its FAUCET Risk Score of 79/100 highlights its significant potential impact. Currently, there is no evidence of active exploitation, nor are there public exploit modules available on platforms like Metasploit or ExploitDB, and community discussion is minimal.