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High severity7.5NVD Advisory· Published Jun 17, 2026· Updated Jun 18, 2026

CVE-2026-46863

CVE-2026-46863

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).

Affected products

4
  • Oracle Corporation/Mysql Cluster2 versions
    cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:oracle:mysql_cluster:*:*:*:*:*:*:*:*range: >=8.0.11,<=8.0.46
    • (no CPE)range: 8.0.11-8.0.46, 8.4.0-8.4.9 and 9.0.0-9.7.0
  • Oracle Corporation/Mysql Server2 versions
    cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*range: >=8.4.0,<=8.4.9
    • (no CPE)range: 8.4.0-8.4.9, 9.0.0-9.7.0

Patches

Vulnerability mechanics

References

1

News mentions

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