{"id":"CVE-2026-83347","title":"Vulnerability in the Oracle Net Services component of Oracle Database Server","summary":"Vulnerability in the Oracle Net Services component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to comp…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-400"],"vendor":"Oracle Corporation","product":"Oracle Database Server","affected":["oracle_database_server >= 23.4.0 <= 23.26.3"],"published":"2026-09-15","updated":"2026-09-18","sourceUpdated":"2026-09-18T17:17:03.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-83347","references":[{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","label":"secalert_us@oracle.com"}],"tags":["nvd","cve.org"],"epss":0.00355,"epssPercentile":0.26428,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-18T16:13:32.770801Z"},"ingestedAt":"2026-09-15T20:44:02.533Z","slug":"CVE-2026-83347","body":"## Overview\n\nVulnerability in the Oracle Net Services component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Net Services.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 6.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}