vulnerability Hitachi Energy GMS600 View CSAF Summary Hitachi Energy is aware of the vulnerability, CVE-2022-4304 in the OSS component OpenSSL, that affects the GMS600 versions that are listed below. An attacker successfully exploiting this vulnerability could send trial messages to the server and record the time taken to process them. After a sufficient CISA Advisories · May 21, 2026 Medium CVE-2022-4304