{"id":"CVE-2026-83330","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83330","generatedAt":"2026-10-28T00:57:16.985Z","title":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket).","description":"Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket).  Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).","published":"2026-09-15T20:18:46.000Z","lastModified":"2026-09-28T15:15:31.000Z","status":"Analyzed","sourceIdentifier":"secalert_us@oracle.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-400"],"affected":["oracle/helidon"],"epss":{"score":0.0047,"percentile":0.40401,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","tags":["Vendor Advisory"],"source":"secalert_us@oracle.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83330","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}