{"id":"CVE-2026-83378","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-83378","generatedAt":"2026-10-28T02:21:32.538Z","title":"Vulnerability in Oracle Java SE (component: Compiler).","description":"Vulnerability in Oracle Java SE (component: Compiler).  Supported versions that are affected are Oracle Java SE: 21.0.12.1, 25.0.4.1 and  27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE.  Successful attacks of this vulnerability can result in  unauthorized update, insert or delete access to some of Oracle Java SE accessible data as well as  unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 4.8 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).","published":"2026-10-20T22:19:54.000Z","lastModified":"2026-10-27T14:17:03.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert_us@oracle.com","cvss":{"version":"3.1","score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"},"cwe":["CWE-284"],"affected":[],"epss":{"score":0.00226,"percentile":0.1316,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.0022,"percentile":0.1175}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T22:19:54.000Z","detail":{"score":"4.8","severity":"MEDIUM","publishedAt":"2026-10-20T22:19:54.040Z"},"summary":"New CVE, medium severity (CVSS 4.8)."}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","source":"secalert_us@oracle.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-83378","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."}