{"id":"CVE-2026-6918","aliases":["EUVD-2026-27315","GHSA-q393-vr4c-969r","RHSA-2026:22328","UBUNTU-CVE-2026-6918"],"status":"published","title":"Red Hat Security Advisory: java-21-ibm-semeru-certified-jdk security update","description":"In Eclipse Open9J versions 0.21 to 0.58, a pre-authentication remote attacker can crash JITServer by sending a 32-byte crafted TCP message.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00517,"percentile":0.44448,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-1286"],"published":"2026-05-05T12:29:09Z","modified":"2026-10-28T02:30:52Z","affected":[{"source":"osv","ecosystem":"Red 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