{"id":"CVE-2026-46863","state":"PUBLISHED","title":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling).  Supported versions that are affected are MySQL Server: 8.4.0-8.4","description":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and  9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. 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).","publishedAt":"2026-06-16T19:27:35.870Z","updatedAt":"2026-06-17T14:52:56.766Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"oracle"},"assigner":"oracle","products":["Oracle Corporation MySQL Server","Oracle Corporation MySQL Cluster"],"affected":[{"vendor":"Oracle Corporation","product":"MySQL Server","versions":[{"version":"8.4.0-8.4.9","status":"affected"},{"version":"9.0.0-9.7.0","status":"affected"}]},{"vendor":"Oracle Corporation","product":"MySQL Cluster","versions":[{"version":"8.0.11-8.0.46","status":"affected"},{"version":"8.4.0-8.4.9","status":"affected"},{"version":"9.0.0-9.7.0","status":"affected"}]}],"references":["https://www.oracle.com/security-alerts/cspujun2026.html"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46863.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46863","state":"PUBLISHED","datePublished":"2026-06-16T19:27:35.870Z","dateUpdated":"2026-06-17T14:52:56.766Z","assignerShortName":"oracle","assignerOrgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateReserved":"2026-05-18T15:55:10.307Z"},"containers":{"cna":{"descriptions":[{"lang":"en-US","value":"Vulnerability in the MySQL Server, MySQL Cluster product of Oracle MySQL (component: Server: Connection Handling).  Supported versions that are affected are MySQL Server: 8.4.0-8.4.9, 9.0.0-9.7.0; MySQL Cluster: 8.0.11-8.0.46, 8.4.0-8.4.9 and  9.0.0-9.7.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster. 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)."}],"affected":[{"vendor":"Oracle Corporation","product":"MySQL Server","versions":[{"version":"8.4.0-8.4.9","status":"affected"},{"version":"9.0.0-9.7.0","status":"affected"}]},{"vendor":"Oracle Corporation","product":"MySQL Cluster","versions":[{"version":"8.0.11-8.0.46","status":"affected"},{"version":"8.4.0-8.4.9","status":"affected"},{"version":"9.0.0-9.7.0","status":"affected"}]}],"references":[{"url":"https://www.oracle.com/security-alerts/cspujun2026.html","name":"Oracle Advisory","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en-US","description":"Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server, MySQL Cluster.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server, MySQL Cluster."}]}],"providerMetadata":{"shortName":"oracle","orgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateUpdated":"2026-06-16T19:27:35.870Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*","versionStartIncluding":"8.4.0","versionEndIncluding":"8.4.9"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndIncluding":"9.7.0"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*","versionStartIncluding":"8.0.11","versionEndIncluding":"8.0.46"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*","versionStartIncluding":"8.4.0","versionEndIncluding":"8.4.9"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndIncluding":"9.7.0"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-17T14:52:40.996015Z","id":"CVE-2026-46863","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","type":"CWE","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-17T14:52:56.766Z"}}]}}}